Parker cylinder OSPP250000001000001000000 In stock

Brand

PARKER/American Parker

Action Method

Other

Application Areas

Chemical, Petroleum, Mining, Road/Rail/Marine, Comprehensive

Parker (short for Parker Hannifin) is a diversified manufacturer of motion and control technologies and systems, providing precision solutions for a wide range of drive control, industrial, and aerospace markets. It has become a major global company specializing in the production and sales of various refrigeration and air conditioning components, hydraulic, pneumatic, and fluid control products and components. Parker PEN pens are synonymous with top-quality pens. Parker's philosophy, "Make the product better, and people will buy it," has always guided Parker's commitment to manufacturing "better pens," a profound cultural heritage accumulated over a century.

A cylinder is a cylindrical metal component that guides a piston in its linear reciprocating motion. In an engine cylinder, the working fluid expands, converting thermal energy into mechanical energy; in a compressor cylinder, gas is compressed by the piston, increasing its pressure. The housing of turbines, rotary piston engines, etc., is also commonly referred to as a "cylinder." Applications of cylinders: Printing (tension control), semiconductors (spot welding machines, chip grinding), automation control, robotics, etc. When Karl Benz and Daimler designed and manufactured automobiles, they both used engines with only one cylinder. Currently, domestically produced vehicles like the Huali minivan, older Xiali models, Geely Haoqing, Alto, and Flyer all use 3-cylinder engines.

The development history of Parker cylinders:

Cylinder principles originated from cannons:

Cylinders originated from cannons? This is not sensationalism. The cylinders in your car are indeed related to cannons.

In 1680, Dutch scientist Hohenschwangau, inspired by the principles of cannons, wondered why the powerful force of cannonballs could be used to drive other machines. Initially, he still used it as a burning explosive, modifying the cannonball into a "piston," the cannon barrel into a "cylinder," and adding a one-way valve. He injected the gas into the cylinder; when ignited, it exploded and burned violently, pushing the piston upwards and generating power. Simultaneously, the immense pressure of the exploding gas pushes open the one-way valve, expelling the exhaust gas. Then, the remaining exhaust gas inside the cylinder gradually cools, its pressure decreases, and the atmospheric pressure outside the cylinder pushes the piston downwards, preparing for the next explosion. Of course, due to its excessively long stroke and low efficiency, it ultimately failed. However, it was Hohenst who first conceived the idea of ​​the "internal combustion engine," upon which later generations invented the automobile engine.

Cylinder

Cylinder Atlas

Early Automobiles Used Single-Cylinder Engines

When Karl Benz and Daimler designed and manufactured automobiles, they both coincidentally used engines with only one cylinder. Just as we believe it's impossible for a car to use two or more engines, it's unlikely that people at the time would imagine using engines with two or more cylinders. However, things are different now. Leaving aside developed countries, just look at domestic car advertisements. Many manufacturers constantly emphasize the number and arrangement of engine cylinders. Microcar sellers tout their four-cylinder engines instead of three, and those using V6 engines make sure the "V" is prominently displayed. This advertising has indeed been very effective, and many car enthusiasts have accepted concepts like "4 cylinders are better than 3 cylinders," "6 cylinders are better than 4 cylinders," "V-type is better than inline," and "V-type engines are advanced engines." Nearly 20 domestically produced cars are now equipped with V6 or V8 engines.

A single-cylinder engine only produces power through combustion once every two crankshaft rotations. This results in a discontinuous and uneven sound, as you can hear from the sound of a small-displacement motorcycle. More unacceptable is its extremely unstable operation, with large fluctuations in engine speed. Furthermore, the shape of a single-cylinder engine is unsuitable for automobiles. Therefore, single-cylinder engines are no longer seen in cars, and two-cylinder engines are also hard to find; at least three-cylinder engines are now the norm. Domestically produced minivans like the Huali, older Xiali, Geely Haoqing, Alto, and Flyer all use 3-cylinder engines.

Mini cars with engines under 1 liter typically use 3-cylinder engines, while 1-2 liter engines generally use 4- or 5-cylinder engines. Engines over 2 liters are mostly 6-cylinder, and engines over 4 liters predominantly use 8-cylinder engines.

With the same displacement, increasing the number of cylinders increases engine speed, thus increasing engine output power. Additionally, increasing the number of cylinders makes the engine run more smoothly, resulting in more stable torque and power output. It also makes the car easier to start and improves acceleration responsiveness. To improve vehicle performance, the number of cylinders must be increased. Therefore, luxury sedans, sports cars, and other high-performance vehicles all have 6 or more cylinders, with some reaching 16 cylinders.

However, there is no limit to the increase in the number of cylinders. As the number of cylinders increases, the number of engine parts also increases proportionally, leading to a more complex engine structure, reduced reliability, increased weight, higher manufacturing and operating costs, increased fuel consumption, and larger engine size. Therefore, the number of cylinders in a car engine is a suitable choice made after weighing various advantages and disadvantages, based on the engine's intended use and performance requirements.

Standing side-by-side in a row.

Inline engine

An inline engine (line engine) has all its cylinders arranged side-by-side in a single plane. Its cylinder block and crankshaft structure are simple, and it uses a single cylinder head, resulting in lower manufacturing costs, higher stability, better low-speed torque characteristics, lower fuel consumption, and a compact size, making it widely used. Its disadvantage is lower power output. "Inline" can be represented by "L," followed by the number of cylinders to form the engine designation. Modern cars mainly use L3, L4, L5, and L6 engines.

Inline 3-cylinder.

Parker Cylinder Structure:

A cylinder consists of a cylinder barrel, end caps, a piston, a piston rod, and seals. Its internal structure is shown in the diagram:

1) Cylinder Barrel

The inner diameter of the cylinder barrel determines the output force of the cylinder. For the piston to slide smoothly back and forth within the cylinder barrel, the surface roughness of the inner surface should reach Ra0.8um. ​​For steel pipe cylinder barrels, the inner surface should be hard chrome plated to reduce frictional resistance and wear, and to prevent corrosion. Besides high-carbon steel pipes, high-strength aluminum alloys and brass are also used for cylinder barrel materials. Small cylinders may use stainless steel pipes. Cylinders with magnetic switches or those used in corrosive environments should use stainless steel, aluminum alloy, or brass for the cylinder barrel.

2) End Caps

The end caps have inlet and outlet ports, and some also have a buffer mechanism inside. The rod-side end caps have sealing rings and dust seals to prevent air leakage from the piston rod and to prevent external dust from entering the cylinder. The piston rod end cap has a guide sleeve to improve the cylinder's guiding accuracy, bear a small amount of lateral load on the piston rod, reduce the downward bending of the piston rod when it extends, and extend the cylinder's service life. The guide sleeve is usually made of sintered oil-impregnated alloy or forward-inclined copper casting. End caps were previously commonly made of malleable cast iron, but now, to reduce weight and prevent rust, aluminum alloy die-casting is commonly used; micro cylinders sometimes use brass.

3) Piston

The piston is the pressure-bearing part in the cylinder. To prevent air leakage between the left and right chambers of the piston, a piston seal ring is provided. Wear rings on the piston improve the cylinder's guiding performance, reduce wear on the piston seal ring, and reduce frictional resistance. Wear rings are often made of polyurethane, polytetrafluoroethylene, or fabric-reinforced synthetic resin. The piston width is determined by the seal ring size and the necessary sliding part length. A sliding part that is too short can easily cause premature wear and jamming. Pistons are commonly made of aluminum alloy and cast iron; pistons in small cylinders are sometimes made of brass.

4) Piston Rod

The piston rod is the most important force-bearing part in the cylinder. High-carbon steel is typically used, with a hard chrome plating finish, or stainless steel is used to prevent corrosion and improve the wear resistance of the sealing rings.

5) Sealing Rings

The sealing of components in rotating or reciprocating motion is called dynamic sealing, while the sealing of stationary parts is called static sealing.

The main connection methods between the cylinder barrel and the end cover are as follows:

Integral type, riveted type, threaded connection type, flange type, and tie rod type.

6) During cylinder operation, the piston is lubricated by oil mist in compressed air. A small number of cylinders are lubrication-free.

Mechanical and Electrical & Transmission Department

Mechanical and electrical automation products cover everything from human-machine interfaces to controllers, drives, servos, motors, reduction gears, and a wide variety of mechanical drives, AC and DC frequency converters. We also provide comprehensive solutions to meet the needs of different customer levels.

Typical products in the frequency converter field include: DC590, AC690, DC590+, etc.! OSPP800100001600000000000

OSPP250000001000001000000

OSPP630000000450005000000

OSPP250001000060000000000

OSPP250001000800100000000

OSPP160000000410000600000

OSPP400000101600000000000

OSPP630000001100005000000

OSPP500000001200005000000

OSPP500000000650005000000 OSPP250000002020001000000

OSPP400100000700000600000

OSPP400100000900000600000

OSPP160000001870000200000

OSPE32-60002-01700-000000

OSPE25-30300-00200-000000

OSPP250000000372000000000

OSPE32-00100-00851-060000

OSPP320000000690003000000

OSPE32-20400-01250-000000 OSPP500A00002350005000000

OSPP250000000576000000000

OSPE32-10400-00500-000000

OSPP800000000620004000000

OSPP500000000200100000000

OSPP250000002350000000000

OSPP320010000800100G00000

OSPP400000000700001000000

OSPP400200003500000000000

OSPP250000000370001000000 OSPP400000000600004000000

OSPP320A00105000000000000

OSPP400000001150000000000

OSPP320000000250000L00000

OSPP32000000160000100000X

OSPP32100010103500000000

OSPP320200001990000000000

OSPP320200001990000000000

OSPP250A00000780000000000

OSPP100010100600000000000 OSPP250A00000780000000000

OSPP250004000325001004000

OSPP320000001320003003000

OSPP320004000600000004000

OSPE32-10400-00130-000000

OSPP160000000400000200000

OSPP25C000000650000000000

OSPE20-60002-00210-000000

OSPE20-60002-00480-000000

OSPE32-00100-00920-0D0000 OSPP250000001300000700000

OSPP800000000900000000000

OSPP630000003300000000000

OSPE50-20600-00350-000000

OSPP160000000200000200000

OSPP250000002000000E00000

OSPP250000000200000300000

OSPP32C000000330000000000

OSPP400000000100100000000

OSPP500000000320000000000 OSPP400010001000000000000

OSPP40C000000570000000000

OSPP160001000610000200000

OSPP800000001270000000000

OSPP320000000515010000M00

OSPP320201000660001000000

OSPE50-10400-00400-000000

OSPP250000001355000000000

OSPP160000101000000000000

OSPP400000001250100000000 OSPP250010100610000000000

OSPP250010100590000000000

OSPP25C000100275000000000

OSPP250000000500000L00000

OSPE32-10400-00550-000000

OSPP250000001200000200000

OSPP250000000165000E00000

OSPP25F000001600000000000

OSPP320000000810000000000

OSPP800000002000005000000 OSPP400000000750005000000

OSPP16C000001200000000000

OSPP40C000002000000000000

OSPP400000000265000000000

OSPP250000001930000000000

OSPP40C000000800000000000

OSPP500010001540000000000

OSPP500200000380000000000

OSPP320000001500003000000

OSPP320A00000390000000000 OSPP250000001330001000M00

OSPP320100002250000000000

OSPP100000000290000000000

OSPP160000000300000E00000

OSPE50-00100-02192-000000

OSPE50-00000-01578-000000

OSPP250001002005000200000

OSPP320010000472000000000

OSPP80C000001610000000000

OSPP400000000800005000000 OSPE25-60008-01600-004000

OSPP250000000150000200000

OSPE25-20400-00170-060000

OSPP630000001700003000000

OSPP400000000410003003000

OSPP630010003400000000000

OSPP250010000300000000000

OSPP25C000001410000000000

OSPP320810000480000000000

The company mainly deals with European and American brands. We can source brands from any European country, including leading German brands such as: BURKERT, DEMAG, HAWE, REXROTH, HYDAC, PILZ relays, FESTO, IFM sensors, E+H, HEIDENHAIN, P+F sensors, SICK, TURCK, and HIRSCHMANN industrial switches. German brands: Hengstler, Murr, Schmersal, Samson, EPRO (Emerson Group)

American brands: MOOG, ASCO, MAC, NUMATICS, PARKER, VICKERS, ROSS

British brands: Norgren

Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camozzi.