Search Results - Piston
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A piston is a component of reciprocating engines, pumps and gas compressors. It is located in a cylinder and is made gas-tight by piston rings. In an engine, its purpose is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and/or connecting rod. In a pump, the function is reversed and force is transferred from the crankshaft to the piston for the purpose of compressing or ejecting the fluid in the cylinder. In some engines, the piston also acts as a valve by covering and uncovering ports in the cylinder wall. There are two ways that an internal combustion piston engine can transform combustion into motive power. These are the two-stroke cycle and the four-stroke cycle. A single cylinder two-stroke engine produces power every crankshaft revolution, while a single cylinder four-stroke engine produces power once every two revolutions. Older designs of small two-stroke engines produced more pollution than four stroke engines. However, modern two-stroke designs, like the Vespa ET2 Injection utilise fuel-injection and are as clean as four-strokes. Large diesel two-stroke engines, as used in ships and locomotives, have always used fuel injection and produce low emissions. One of the biggest internal combustion engines in the world, the Wärtsilä-Sulzer RTA96-C is a two-stroke; it is bigger than most two-story houses, has pistons nearly 1 metre in diameter and is one of the most efficient mobile engines in existence. In theory, a four-stroke engine has to be larger than a two-stroke engine to produce an equivalent amount of power. Two-stroke engines are becoming less common in developed countries these days, mainly due to manufacturer reluctance to invest in reducing two-stroke emissions. Traditionally, two-stroke engines were reputed to need more maintenance (despite exceptions like the Ricardo Dolphin engine, and the Twingle engines of the Trojan car and the Puch 250 motorcycle). Even though the simplest two-stroke engines have fewer moving parts, they could wear out faster than four-stroke engines. However fuel-injected two-strokes achieve better engine lubrication, and cooling and reliability should improve considerably. A piston and its connecting rod. CAD drawing of crankshaft and pistons.
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Showing 1 to 25 of 38 Articles matching 'Piston' in related articles. |
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1. How to Get The Flavor of Espresso Coffee
November 13, 2008
Twenty years before the phrase espresso was sufficient to send inhabitants running or drink or something like that? The simple idea of giving half a cup of coffee at double the power and frequently double the price, espresso was only just a household utterance. It is just lately that espresso can declare to have stolen the public interest away from its other coffee challengers. The discovery of the spring piston by Gaggia in 1946 developed the technique by which force is attained devoid of boiling water.
Since it is considered espresso to be in the front position of the entire coffee e... (read more)
Author: Francis Adam
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2. Honda - Lord Of The Rings
October 20, 2008
I wonder if Soichiro Honda knew what he was starting when as a schoolboy in the late thirties, he began his development of the piston ring. As his ideas came to fruition and production began, he tried to sell his rings to Toyota, but was told that his work didn't meet their rigorous standards. Undaunted, he carried on and two years later he finally earned a contract with the Japanese giant. The man's determination was shown in the lead up to the Second World War. Japan was short of building materials, so the enterprising Mr Honda invented a new concrete making process that allowed him to co... (read more)
Author: Alan Liptrot
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3. Auto Part,Automotive Car Part,Automotive Spare Parts,Auto Spare Part Exporter.
October 15, 2008
Dear sir,
We are the Manufacturer and supplier of Auto parts, Engine Bearings, Pistons, Piston Rings & Pins, Cylinder Liners, Engine Mountings Radiator Mountings Gearbox Mountings,Connecting rod, suspension parts, Gearbox, Engine Bearings, Pistons, Piston Rings & Pins, Cylinder Liners, Engine Mountings Radiator Mountings Gearbox Mountings, Oil Seals & "O" Rings, Shackles, Brackets, Spring Pins, King Pins, Assorted Nuts & Bolts for Automotives, Tie Rod Ends, Drag Link Assemblies, Ball Joints, Track Control Arms, Headlight & Tail Light Parts & Assemblies, Gaskets and Connecting Rods, Oil S... (read more)
Author: Windsor Exports
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4. Atlas Copco Compressors
October 07, 2008
Glaston Compressor Services Ltd- We offer our customers the very best in design, product and service to ensure energy savings and cost-efficiency across their operations.To know more about us Click Atlas Copco Compressors Why buyAtlas Copco Compressors? Why do you needAtlas Copco Compressors? Atlas Copco is a manufacturer of compressors, generators, construction and mining equipment, industrial tools, assembly systems and equipment rental. Atlas Copco compressors can be found in applications from printing to pipe pigging, body shops to bottling halls. The Atlas Copco range include... (read more)
Author: Kaushik Mukherjee
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5. NBA Tickets - Reflecting on Drafts of the Past: 2005 (Picks 26-30)
October 02, 2008
StubHub.com is the best place to get NBA tickets.The NBA Draft is not an exact science and sometimes teams find a diamond in the rough toward the end of the first round. Here I examine picks 26 through 30 in the 2005 draft and how each player has come along in their NBA career thus far.26.Detroit Piston selected Jason Maxiell: Maxiell is just the type of guy Joe Dumars loves. He’s a beast on the boards and makes up for his lack of height with his athleticism and energy. He’s been an important player coming off the bench for the Pistons since he’s entered the league and projects to be a dece... (read more)
Author: Morgan Dunn
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6. How Gasoline Engines Work
September 17, 2008
Gasoline cars work on the same principals as all other cars i.e. hybrid, electric, and hydrogen. The major difference between them is the fuel that is used or burned in the engine and how many emissions are put out.
A gasoline engine burns fuel also called petrol. The fuel is pumped into the engine where it is then burned. The engine works on a four cycle principle. Cycle 1. the piston moves down the chamber drawing in the fuel, 2. the piston moves back up the chamber compressing the fuel, 3. the fuel is ignited by the spark plug and the piston is pushed back down the chamber in turn rota... (read more)
Author: Craig F Stevens
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7. Inside Knowledge about Marine Diesel Engines
September 10, 2008
Once a small marine diesel engine is started, it can be used to drive a small electrical generator that can then be used to produce electrical supply for driving other machines like pumps, compressors, and for lighting. In an internal combustion engine like a Marine Diesel Engine, this rapid combustion, and built-up of hot gas pressure is used to push a piston away from the enclosed combustion space. The piston is attached to a crankshaft through a connecting rod. Because of this, the engine is able to convert the linear movement of a piston to a rotating movement of a crankshaft.
The o... (read more)
Author: Christine Layug
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8. Humor: Joys Of A Used Car
August 26, 2008
My 1988 VW is not just a used car. It is also a previously abused car. There's bits of airconditioner left bolted on in the engine compartment with big gaps where the working bits should have been. My mechanic tells me that the engine's got piston slap, and needs a major transplant. My kids tell me that if I gave them the car for free, they would still walk.
Which isn't a bad idea. They need to get some exercise and fresh air.
But hey, there are some advantages in owning a beat up relic of a bygone era. For one thing, I don't fear shopping trolleys banging into my car, or people op... (read more)
Author: Duncan Kelly
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9. Have You Heard About The 2007 corvette 3lt
July 31, 2008
2005 corvette zo6
They're also working on offering a kit for the Lexus IS-F , set to include headers and a modified exhaust system to squeeze more oopmh from the eight-geared oddity. The front calipers are Brembo 6 piston. GM says they save 11 pounds at each corner compared to cast iron rotors. GM's plan for the LS9 included a supercharger, and it felt the 427 cubic-inch block wasn't strong enough to reliably hold up to the intended boost.
The chassis, similar to the 2008 Z06, will be made of aluminum. The 2009 Corvette ZR1 starts at $103,300 including $850 destination charges. Ch... (read more)
Author: Richard Shryack
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10. Details About Gasoline Engines
July 30, 2008
Gas engines are known as internal combustion engines and are divided into two general classes, specifically two cycle and four cycle engines. A cycle of an engine represents one stroke of the piston or one half revolution of the crank shaft, as a complete revolution represents two cycles. With a two cycle engine, the power impulse occurs at each revolution, while with four cycle engines it occurs at every other revolution, hence the terms two and four cycle engines.
Both classes have their own specific advantages and uses. For autombiles, the four cycle engines is most used... (read more)
Author: matt may
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11. Custom Molded Rubber Components
July 17, 2008
CUSTOM MOLDED RUBBER COMPONENTS
Custom molded rubber components are widely used in mechanical systems which do not tolerate vibration. Rubber is most useful in fighting vibration through the use of bumpers, cushions, damping, isolators, shock absorbers, springs, rubber sheets and so on. Valley Seal specializes in distributing these very custom molded rubber components. Our clients include small, mid-size and large manufacturing companies both American and International.
We cater to customers across many industries including aerospace and military. Injection molded rubber, transfe... (read more)
Author: blade sharper
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12. What are nutritional deficiencies and what do they do to your health?
June 23, 2008
A deficiency is basically a nutrient that your body does not have enough of to function properly.
What if you forgot to put enough oil in you car? Despite the fact that it was getting the air, gas, functioning spark plugs and good combustion, the car wouldn’t work properly. Sure the piston would go up and down and the car would move forward – just like normal. But soon the engine might run a little hot. Down in the engine different things might start happening. The rings around the piston that stopped oil from getting up into the combustion area might be giving way. The normal s... (read more)
Author: Chris Daino
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13. The Benefits of an Air Rowing Machine
June 02, 2008
You might wonder just what in the world is an air rowing machine, since it seems rather odd to be rowing air. But when it comes to exercise equipment, there are rowing machines that actually work with water as a form of the resistance and others that use magnetic, piston or weights for resistance. Some however use air as the resistance mechanism; these are called air rowing machines since you are just rowing air. They have a lot of benefits for anyone that is looking to get back into shape or those that want to take their physical fitness routine to the next level.
Using an air rowing ... (read more)
Author: David Cowley
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14. The Articulated Piston Pump
May 20, 2008
The Articulated Piston
The Articulated Piston By Benjamin Kendall A two-piece piston composed of independent head and skirt portions, wherein the skirt portion is mounted by means of a wrist pin on bosses located on the lower end of members pending from the head portion, the head portion being provided with an annular recess between the combustion bowl and the ring zone, and the skirt provided with a tray on its upper end, the annular recess and the tray defining a semi-open cooling chamber. With the piston assembled, the lower end of the head portion below the ring zone a... (read more)
Author: Benjamin Kendall
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15. The Exceptional Features of a Hydraulic Press Brake
May 19, 2008
Hydraulic press brakes are more flexible and have a higher capacity than mechanical ones because hydraulic brakes are controlled through fluid pressure to a piston. The use of pressurized fluid allows you to program different strokes and speeds within a stroke as needed. Depending on the cylinder length, stroke lengths up to 250 cm or 100 in can be easily obtained in hydraulic press brakes. The number of strokes can be as high as 600 per minute, as it is in the case of a high-speed blanking operation.
You have three types to choose from: conventional, NC, and CNC. In conventional machines... (read more)
Author: Michael Headingten
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16. Water4Gas Review-Can a Car Really Run On Water?
April 28, 2008
First of all, in case you are brand new to alternative energy, let me explain what Water4Gas is. In a nutshell, Water4Gas is a device you construct yourself to help you get dramatically better fuel mileage. It uses a small amount of electricity from your battery to extract hydrogen from water. It mixes the hydrogen gas with your gasoline in the piston of your car. It then ignites with the gasoline giving more power and using less gasoline to power your car. Secondly, not only have I personally bought the plans and installed them (45-50-25% power boost, less wear on motor, less pollution, le... (read more)
Author: Mark Myers
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17. Suspension Bushes: Friend of a Car on Tough Roads
April 09, 2008
When normal car drivers think of automobile performance, they generally think of horsepower, torque and zero-to-60 acceleration. But, the fact is that all of the power generated by a car piston engine is useless if the driver can't control the car. That's why car engineers turned their attention to the suspension system and suspension bushes.
If a road were perfectly flat, with no ups and downs, suspensions wouldn't be necessary but this is unreal. Roads are far from flat and sometimes you can see even freshly paved highways having subtle imperfections that can interact with the wheels o... (read more)
Author: Breonna Isabela
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18. Things your Outboard Mechanic won't tell you!
February 10, 2008
Like the best way to prepare your outboard for winter storage or if your outboard seized during storage how to get it running without any new parts or special tools.
Best way to prepare a two stoke outboard for winter storage in a warm dry place is to disconnect the fuel line and let the engine run at a very slow idle at the dock until it stops. Gas and oil residue are all you need to keep the engine through the winter season. For four stokes be really careful! They run so clean they want to rust up! For years people never did anything differently for a four stoke than a two stoke as far ... (read more)
Author: Steve Yates
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19. Importance of Air Cylinders
January 07, 2008
Air cylinders are recognized as the final module in a pneumatic, compressed air control or in any power system. Air cylinders, or pneumatic cylinders, are tools, which switch compressed air power into a usual mechanical or automatic energy. This mechanical energy generates linear or rotating motion. In this way, the air cylinder works as an actuator in any pneumatic system, so it is as well identified as a pneumatic linear actuator. The air cylinder comprises of steel or could be of stainless steel piston, a piston rod, a cylinder container and including end covers. As compressed air progresse... (read more)
Author: john russel
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20. A Look at the Different Types of Pellet Rifles
November 26, 2007
Pellet rifles are at the air rifles that makes the use of pellets for firing. Spring piston pellet riflesSpring piston is one of the operating mechanisms for the pellet rifles. The spring piston air rifles are able to achieve muzzle velocities that can equal the speed of sound. This can be achieved from a single stroke of a cocking lever or the barrel itself. The power of the rifle is related to the cocking stroke of the gun. Therefore high muzzle velocities require greater cocking effort.The operation of the spring piston rifles depend on the spring loaded piston of a coiled steel. This is c... (read more)
Author: Peter Gitundu
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21. A Look at the Various Parts of a BB Gun
November 26, 2007
The Gamo Viper Express is a combination of rifle and shotgun. This shotgun sets the standard of first shotgun produced with a spring piston. Thus new opportunities for hunting with performance airguns have been created.Maximum velocity and performance is achieved by the built of the gun on proven GAMO 1000 power plant. This shotgun has choked, smooth bore barrel with front bead sight and full raised ribs. Other features of this gun includes an all weather synthetic stock with dual cheek pads for left and right handed shooting, double checkering inserts of soft rubber double on forearms and g... (read more)
Author: Peter Gitundu
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22. A Look at the Different Types of Pellet Rifles
November 26, 2007
Pellet rifles are at the air rifles that makes the use of pellets for firing. Spring piston pellet riflesSpring piston is one of the operating mechanisms for the pellet rifles. The spring piston air rifles are able to achieve muzzle velocities that can equal the speed of sound. This can be achieved from a single stroke of a cocking lever or the barrel itself. The power of the rifle is related to the cocking stroke of the gun. Therefore high muzzle velocities require greater cocking effort.The operation of the spring piston rifles depend on the spring loaded piston of a coiled steel. This is c... (read more)
Author: Peter Gitundu
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23. A Look at the Various Parts of a BB Gun
November 26, 2007
The Gamo Viper Express is a combination of rifle and shotgun. This shotgun sets the standard of first shotgun produced with a spring piston. Thus new opportunities for hunting with performance airguns have been created.Maximum velocity and performance is achieved by the built of the gun on proven GAMO 1000 power plant. This shotgun has choked, smooth bore barrel with front bead sight and full raised ribs. Other features of this gun includes an all weather synthetic stock with dual cheek pads for left and right handed shooting, double checkering inserts of soft rubber double on forearms and g... (read more)
Author: Peter Gitundu
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24. Best in class timing belt, transmission mount to keep Audi in tight rein
September 26, 2007
In every Audi model, both the engine and transmission systems work together to give drivers a tight rein of the car. The Audi transmission is the chief vehicle part that facilitates control of the vehicle. But because engine operations are chronically disruptive and at times erratic, the Audi transmission tends to fall short in providing drivers a good command of the car. One reason why engines are disruptive may involve the piston and crankshaft movement during the combustion process. Valve timing, a critical part of the power-generation process in the Audi engine, waits for nothing. The ... (read more)
Author: Anthony Fontanelle
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25. Aviation Headsets For Pilots
August 25, 2007
When you are considering the purchase of headsets for use in your aircraft, the first thought that often comes to mind is comfort; however, this is not the most important consideration when buying a headset. Modern piston-powered aircraft and helicopters produce high sound levels, often in the range of 90-95db, and present a major challenge to provide both clear communication and adequate hearing protection.
NOISE REDUCTION METHODS
With respect to noise reduction, the two most popular methods for noise reduction today are Passive Noise Reduction (PNR) and Active Noise Reduction (ANR)... (read more)
Author: John White
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