Premium Essay

Piston Ring

In: Computers and Technology

Submitted By anilsingh1386
Words 2873
Pages 12
Advances in Piston Ring Technology
Piston rings have one of the toughest jobs inside an engine. They’re slammed up and down between the ring lands thousands of times a minute, they’re subjected to searing temperatures and extreme pressures, and they’re constantly scraping back and forth against the cylinder walls. In spite of all of this, the rings are expected to seal combustion and vacuum, prevent blowby, control oil consumption, keep the cylinder walls lubricated, cool the pistons, and last but certainly not least, last almost forever (150,000 miles plus in a passenger car/light truck engine or up to 1 million miles in a heavy-duty over-the-road diesel)!
It’s a demanding list, yet most rings are up to the task and hold up pretty well — assuming the “right” rings are used for the application, the cylinders are finished properly and the rings are installed on the pistons correctly. Obviously, the ring sealing requirements of a high-revving racing engine or a hard-working diesel engine are much more demanding than those of a mild stock engine. So with that in mind, let’s look at some of the latest thinking as it applies to piston ring designs, materials and coatings.
Stock Rings

With so many late-model engines running thinner, low-tension moly-faced ductile iron and steel rings, one might think cast iron rings are fading into history. They are at the OEM level, but it looks like cast iron rings will be around for a long, long time in the aftermarket. According to several ring suppliers, there is still a very strong demand for plain cast iron rings. The main reason is that cast iron rings cost less than more durable materials — and they hold up well enough in light-duty stock rebuilt engines. Even so, plain cast iron rings can’t provide the durability of a chrome or moly-faced ring set, or a steel or ductile iron ring set that is engineered for high output,…...

Similar Documents

Premium Essay

Aladdin and the Rings

...Aladdin and the Rings Fairy tales have been around for countless centuries, and their impact on story telling is still extremely influential to this day. The main morals that these tales first displayed is still what drives the plotlines of countless movies and books today. There is a large amount of these entertaining stories that owe credit to the original plots and morals of fairy tales. One fairy tail in particular that stands out when it comes to repeating plots and morals among today’s stories is Aladdin, more specifically Aladdin’s heroic qualities and his will to overcome adversary and obstacles. Aladdin is a folk tale that originated in the Middle East; it was included in the vast book of tales known as “The book of one Thousand and One Nights,” which is better known as “Arabian Nights.” The true origins of Aladdin are not precisely known, but some say a Frenchman wrote the tale in 1704, his name was Antoine Galland (Aladdin's origins likely European, and not Arabic). Many claim it is a possibility that Galland also took the tale and made it sound more Arabic, explaining why it was then put into “Arabian Nights.” (Aladdin's origins likely European, and not Arabic) Aladdin was also made into a film in 1992 by Walt Disney pictures, which altered the original story details to those of their liking for the production (IMDB). I believe that the plot of Aladdin and the morals it tries to convey are extremely similar to a particular series of books, which was......

Words: 2374 - Pages: 10

Premium Essay

Ring Medicals

...| Case Analysis Ring Medicals | | | | | | Major Issues Paul Ruggieri; President and CEO of Ring Group strongly believed that the HCS-100 product could well represent the single major opportunity for the company to turn profit however this is with some major issues faced by the firm which includes, * An average of two to three units a month are expected to sold which would yield a total revenue of $150,000 per month at average gross margin of nearly 50%. As of April 1988, only 5 systems where sold versus a budgeted sales of over 30 annually. Revenues totaled about 15% of the targeted annual amount of over $1.7 billion. * The company appointed 8 manufacturers rep with 20% commission on sales however the sales through them was only one system. The reason was highlighted as lack of consistency in the product policy, pricing and customer support in the region. * Scanvest Ring had spent an excess of $700,000 on the HCS-100 effort and the board of members are hesitant to invest any further in this as there is no good result with the investments made as of now. * The price of Ring ACD which was priced 50% - 80% above the US competition. * Management unwillingness to allow Ring Group to make revision in Scanvest Ring or to customize it. * Disagreement in the most appropriate distribution channel wherein three thoughts prevailed in them. Actionable Recommendations HCS-100 served to improve the cost and effectiveness and quality of......

Words: 375 - Pages: 2

Premium Essay

The Lord of the Rings

...The Lord of the Rings: the longest fable ever told It is no secret that The Lord of the Rings has been one of the most beloved trilogies ever written. It has conjured up a fanatical group of followers over its history. The question is why is this book so beloved? Why when we pick up this book are we so enthralled with it? What about this book keeps us coming back for more? I believe for this book that it is because it has so many great messages hidden inside a package wrapped with adventure. A book becomes great when we can relate to its messages and characters very deeply. The never ending battle of good versus evil goes on to this day all around us. This book tells us everything that we should and should not do in our lives. It is like reading the entire collection of Aesop’s fables at one sitting. I don’t think that I have ever been so moved to laughter and tears by written words. The morals of this story are the reasons that I will list for its greatness. I will start with a fierce warning against the evils of greed. The dwarves of Moria were a great and powerful race. They lived in this particular mountain because they could find the mithril ore no where else in the world. It was very light but very hard, excellent for making weapons and armor. They became very greedy and delved deeper and deeper into the ground to keep there supply coming. They were warned that evil things lie deep in the ground, but they did not heed these warnings. It was there doom.......

Words: 1386 - Pages: 6

Free Essay

The Lord of the Rings Review

... 2012)] The Lord of the Rings - The Fellowship of the Ring Film Review The Lord of the Rings film series are a trilogy and one of the best epic fantasy mythological films. The Lord of the Rings – The Fellowship of the Ring, directed by Peter Jackson, is a movie based on the novel written by J.R.R.Tolkien. My goal in this paper is to review the heroics of the fictional protagonist Frodo Baggins, describe how his experiences are universal to the humankind, and how Frodo is considered a model by which people can comprehend their experience and cope with enormous and often mysterious task of being human. Hobbits are usually not considered humans; however they are known to be relatives of the human race of men. They are very timid creatures, and never considered to have great courage to perform amazing achievements under any appropriate situations; however, the heroics demonstrated by the good- hearted Frodo Baggins, the hobbit is remarkable, who ventures out of the Shire for the first time in his life along with his friend Sam, and takes up the responsibility to carry the mystical ring to the fire pits of Mordor and destroy it and its magical powers, on his perilous quest to save the middle earth from Sauron, the Dark Lord. Though, Frodo being a hobbit, and without any mystic powers, he is gifted to withstand the power of the ring better than others. Frodo takes up the initiative and volunteers for the quest that forms the fellowship of the ring. Frodo and the fellowship......

Words: 808 - Pages: 4

Free Essay

Java Ring developing a new Java-based, computerized ring that will automatically unlock doors and log on to computers. This mobile computer can become even more secure. You can keep the iButton with you wherever you go by wearing it as a closely guarded accessory - a watch, a key chain, a wallet, a ring - something you have spend your entire life practising how not to lose. Here are a few reasons why you might want to wear the iButton in the accessory that best fits your life style : ◆ It is a safe place to keep the private keys to conduct transactions. ◆ It overcomes the deficiencies of the secret password. ◆ You eliminate keystroke with a quick, intentional press of the Blue Dot. ◆ You keep your computer at hand versus lugging your everywhere you roam ◆ You become part of the network economy ◆ This steel-bound credential stands up to the hard knocks of everyday wear, including sessions in the swimming pool or clothes washer What is Java Ring? A Java Ring is a finger ring that contains a small microprocessor with built-in capabilities for the user, a sort of smart card that is wearable on a finger. Sun Microsystem's Java Ring was introduced at their JavaOne Conference in 1998 and, instead of a gemstone, contained an inexpensive microprocessor in a stainless-steel iButton running a Java virtual machine and preloaded with applets (little application programs). The rings were built by Dallas Semiconductor. ......

Words: 7793 - Pages: 32

Premium Essay

Ethernet or Token Ring

...Ethernet or Token Ring Ethernet or Token Ring I had an issue with this question that I have to address before I answer it. I understand that the answer that you are looking for is token ring for this scenario but the scenario lacks appropriate detail to really make the decision. It does not tell you the specific type of setup that the bank has or if there even is one. Not to mention that token ring is almost completely dead as far as LAN is concerned. There is no reason that the bank could not use an ethernet setup to accomplish its set goals. I just wish the assignment as a whole would be a little more detailed. That being said lets get to the scenario. Saguaro Federal should use a token ring. I say this because of the topology and function of a token ring. The general overview of a token ring is a circle. Within this circle each system is connected through a MAU by either UTP or STP. The token refers to a data packet that travels around the ring to its destination or destinations. The bank would benefit from a token ring because of the closed aspect of the network, and also because of the one way traffic that happens within the ring. You would avoid data collisions and by using a token ring you can predict the travel time of your data packet arrival. The security aspect of a token ring suits the needs of a financial institution, but also costs more money and difficult technical aspects. XYZ Technology Consultants would benefit for an ethernet setup. ......

Words: 385 - Pages: 2

Premium Essay

Lord of the Rings

...Lord of the Rings and Modern Day Epic? Epic adventures are one of the oldest and most celebrated works of literature. These adventures paint pictures of larger-than-life heroes, terrifying battle scenes, and heroic triumphs. Most epics served the purpose of transmitting culture and history, as well as entertaining readers. Among classical epics are the well-known Epic of Gilgamesh, The Iliad, and The Odyssey. However, is the epic adventure a dying breed of literature? Is it possible that epic stories have sustained the test of time and evolved over the centuries? The Lord of the Rings trilogy, including The Fellowship of the Ring, The Two Towers, and The Return of the King, is one of the greatest examples of a modern day epic. What do The Iliad, The Odyssey, The Epic of Gilgamesh, and The Lord of the Rings all have in common? They all share typical characteristics of epic adventures in some form or another. Though the motives and reasons may differ, the theme of journeying is common to all epic adventures. In The Epic of Gilgamesh, King Gilgamesh sets out on a perilous adventure with his closest friend Enkidu in order to find enduring fame and glory. In The Odyssey, the main character Odysseus embarks on a 10 year-long journey through trials and tests to find his way back home to his wife and son. Epic hero Achilles, of The Iliad, sets out to fight in the legendary Trojan War. Similarly, Frodo Baggins, unassuming hero of The Lord of the Rings, sets out from his home......

Words: 2317 - Pages: 10

Free Essay

Gyges’ Ring

...GYGES’ RING Glaucon's initial speech in Plato’s book II of the Republic tells “The story of Gyges the Lydian”. Glaucon steps in when Thrasymachus has been silenced by Socrates and uses the story to defend the opinion that people don't practice justice for itself, but only because they fear what would happen to them if they don't. On this paper I will provide an example of a situation in which a just person may choose to do the unjust in order to get what he/she desires, if he/she would not be punished for doing so. Maya was a great high school volleyball player, during her junior year she was invited to spend a summer in California playing volleyball with girls from all around the world. All the girls in this program were very skilled and talented, so Maya did not stand out as much as she used to. During her stay, she made a lot of friends, but she had become extremely close friends with one girl in particular, Joy. Joy was by far the most athletic girl in the program. Although her technique was not so unique, she had amazing reflexes and she could out jump and out run everyone else. Joy had no plans to play for any Division I Universities in the U.S. ; she already had a contract coming up the following year to play for a professional team in Europe, and the purpose of this program for her was only to achieve more playing time and experience, not recruitment. Maya had become amazed by how well Joy performed every day, so one day she talked to Joy about her dreams of......

Words: 983 - Pages: 4

Premium Essay

Lord of the Rings

...The Lord of the Rings Some stories can affect people emotionally, but once in a while a story can call a person to escape to it. The Lord of the Rings is an enchanting story with masterful use of setting and sensational characters that engages readers and can move them to experience life in a deeper way. As a child, J.R.R. Tolkien lived in Africa until his father passed away. Then his mother moved them to England. Mrs. Tolkien made certain that her children learned literature and languages. It was probably due somewhat to his mother’s influence that Tolkien became who he was: an author and a linguist (Corday). Tolkien had a special interest in "obscure" languages, even to the point of creating his own. He called it High-Elven and often in his stories he used the language. Tolkien also invented an entire world called Middle Earth where The Lord of the Rings takes place. Because he had invented this world it had to bow to his will and rules. He was an accomplished linguist and this greatly helped his ability to vividly portray and create in the reader’s mind Middle Earth, a place that no person has ever been (Corday). Charters defines setting as "the place and time of the story." Also according to Charters, "When the writer locates the narrative in a physical setting, the reader is moved along step by step toward acceptance of the fiction" (Charters 1008). Tolkien’s setting gives the reader a sense of goodness or malevolence. Unlike an environment that is removed......

Words: 1293 - Pages: 6

Premium Essay

Mantra Ring

...Thumb Rings: The thumbs in palmistry are about self-control. On the active hand (the right hand if a person’s right-handed) a folded-in thumb shows hesitation in applying oneself to worldly ambitions. On the passive hand, on a more personal level, a bent-inward thumb shows inner conflicts.  If you’re engaged in personal trans-formation, wear a narrow, silver ring (for higher guidance and strength) with a milled surface (for industry and effort) on the passive hand’s thumb. This will strengthen your resolve and induce greater powers of self-mastery. Any new challenge, be it losing weight or sticking to your morning yoga class will be easier.  Index finger: The index finger is known to palmists as the ‘mirror’ finger. It’s ruler is Jupiter and it’s about self-reflection. A big ring on the active index finger shows self-esteem issues, and a frustrated need for power and recognition. This is particularly true if there’s a large gemstone. In portraits of powerful, ruling figures, like Henry VIII, Elizabeth I and Napoleon, large rings are visible on both index fingers.  Tin is the metal of Jupiter, so if you lack self-confidence, wear a ring of base metal on the index finger of your active hand to reinforce and enhance the sense of self. Ensure the ring has no gems and has flat, faceted sides (for modesty, humility and all-round recognition). You’ll feel better immediately. Visualize the kind of personal qualities you want frequently while turning the ring slowly with the......

Words: 806 - Pages: 4

Premium Essay

Ethernet Token Ring

...[Ethernet or Token Ring] [Ricky Clark] [IT/242] Due: [6/20/2014] [Sokly Vann] Saguaro Federal has mainframes for all of its banks and businesses. Must the company use the Ethernet or Token Ring protocol? Explain your choice. Why is this choice appropriate? In this particular situation I would have to say that the token ring protocol should be used for its banks and businesses and the reason that I say this is because the banks and business seem to not all be located in the same building they are spread out. In Token Ring LAN’s each station is connected to a wiring concentrator called a multistation access unit using UTP or STP. The access method which is used on a Token Ring is called token which is a special data packet that is generated by the first computer that comes online in a token ring network With this being said this seems the most reasonable and secure because the computers cannot operate without a token from the other. XYZ Technology Consultants has offices on the second, third, and fourth floors of the office building it occupies. Must the company use the Ethernet or Token Ring protocol? Explain your choice. Why is this choice appropriate? In the XYZ technology consultants situation I would suggest an Ethernet protocol. The reason that I came to this conclusion was due in part of the company being located in one building on various floors so everything is central. Ethernet is the most used networking that is available because of the pricing......

Words: 346 - Pages: 2

Free Essay

Piston Less Pump

...I NDEX SR NO. 1} 2} 3} 4} 5} 6} 7} 8} 9} 10} 11} 12} 13} 14} TOPI CS I NTRODUCTI ON NECESSI TY DUAL PI STONLESS PUM P WORKI NG OF THE PUM P DI AGRAM OF PI STONLESS PUM P ADVANTAGES APPLI CATI ONS PERFORM ANCE VALI DATI ON I STALLATI ON I N ROCKET WORKI NG M ODELOF THE PUM P GRAPH OF FLOW RATE VS. TI M E DI SADVANTAGES COCLUSI ON BI BLOGRAPHY ABSTRACT: Pistonless pump for rocket has been proved to be the most economical than piston pump or turbopump. In pistonless pumps, piston is absent. It has very much less rotating parts than that of piston pumps or turbo pumps. So, it has less friction losses and there by it helps to improve the efficiency of the engine considerably.They can be easily installed in the rocket than turbopumps.Also,it reduces the weight of rocket. This article discusses the working , advantages of pistonless pump over turbopump. Pistonless pumps are 80-90% economical than that of piston pump or turbo pumps.Nasa has manufactured such kind of pump and tested it actually,and they found it works conveneiently. I NTRODUCTI ON: NASA have developed a Low cost rocket fuel pump which has Comparable performance to turbopump at 80-90% lower cost. Perhaps the most difficult barrier to entry in the liquid rocket business is the turbo pump. A turbo pump design requires a large engineering effort and is expensive to mfg. and test. Starting a turbo pump fed rocket engine is a complex process, requiring a careful of many valves and subsystems.In fact ,Beal......

Words: 2191 - Pages: 9

Premium Essay

Flexcon Piston Calculation

...Insourcing/Outsourcing Case: The FlexCon Piston Decision Instructor's Guide Instructor's Guide The following describes how to arrive at the key numbers required to complete Appendix 1-3. This case requires the participant to calculate insourcing and outsourcing costs on a per-unit basis. One objective of this case is to familiarize participants with the idea of total cost, and to become accustomed to allocating costs on a per unit basis. Total cost per unit cost allocation allows valid comparisons between insourcing and outsourcing options. INSOURCING COSTS Direct Materials Costs When calculating direct material costs, the key numbers involve last year's production, the cost per 50 lb. block, and the average semi-finished raw material required for each finished piston. First, 50 lb./1.1 lb. required for each piston = 45.45 piston yield per block (288,369 pistons produced last year)/45.45 pistons per block = 6,345 blocks 6,345 blocks x $195 per block = $1,237,275 total direct material costs for blocks to support previous year's production This edition is intended for use outside of the U.S. only, with content that may be different from the U.S. Edition. This may not be resold, copied, or distributed without the prior consent of the publisher. ($1,237,275)/(288,369 last year's output) = $4.29 direct material alloy cost per piston. Since the team expects material costs to remain constant, this figure applies to Year One and Two. FlexCon also spent $225,000 last year on......

Words: 3293 - Pages: 14

Premium Essay

Olympic Rings

...In 1913, when Baron Pierre de Coubertin first sketched five interlocking rings – blue, black, red, yellow and green – on a white background, it would have been difficult to imagine the impact they would have over the course of the next century and beyond. The origin of the Rings Coubertin had conceived the rings as an “international emblem” to  reflect the global reach of the Olympic Movement following the 1912 Olympic Games in Stockholm, which was the first time that athletes had come from all five continents to compete. One year later, the five rings first appeared at the top of a letter written by Coubertin. “These five rings represent the five parts of the world now won over to Olympism and ready to accept its fruitful rivalries,” wrote Coubertin in a 1913 edition of Olympic Review. “In addition, the six colours combined in this way represent the colours of every country, without exception. This is a real international emblem.” The Olympic rings made their official debut at the IOC Congress in Paris in 1914 and were seen at the Olympic Games for the first time in 1920, when the Olympic flag was first raised in Antwerp. Since then, the rings have gone on to become one of the world’s most recognised symbols, seen by billions of people during each edition of the Games and spread throughout the world as the official symbol of the Olympic Movement. The global recognition of the Olympic rings is down to the uniqueness of the symbol and the meaning each one of us......

Words: 1329 - Pages: 6

Free Essay

Lord of the Rings

...going to analyze an excerpt from Lord of the rings, where we hear about Bilbo baggins turning eleventyone 111 and Frodo be coming of age at 33. * What are you going to analyze - We are going to analyze the mysterious circumstances of Bilbo’s age, and why hobbits become of age at 33. * Analysis – what is important? * Frodo becoming of age at 33, could be because of people having such a high life-expectancy. Bilbo’s adventure, and his rich treasures. What kind of treasure he might have stumbled upon on his trip. For example the ring. “Bilbo was very rich and very peculiar, and had been the wonder of the Shire for sixty years, ever since his remarkable disappearance and unexpected return. The riches he had brought back from his travels had now become a local legend, and it was popularly believed, whatever the old folk might say, that the Hill at Bag End was full of tunnels stuffed with treasure. And if that was not enough for fame, there was also his prolonged vigour to marvel at. Time wore on, but it seemed to have little effect on Mr. Baggins. At ninety he was much the same as at fifty. At ninety-nine they began to call him well-preserved, but unchanged would have been nearer the mark. There were some that shook their heads and thought this was too much of a good thing; it seemed unfair that anyone should possess (apparently) perpetual youth as well as (reputedly) inexhaustible wealth. * One may argue that the ring may be his source of life. * The......

Words: 349 - Pages: 2