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2. Piston ring - Wikipedia

   en.wikipedia.org/wiki/Piston_ring

   A piston ring is a metallic split ring that is attached to the outer diameter of a piston in an internal combustion engine or steam engine. The main functions of piston rings in engines are: Sealing the combustion chamber so that there is minimal loss of gases to the crank case.

3. Neuman & Esser - Wikipedia

   en.wikipedia.org/wiki/Neuman_&_Esser

   Oil-free and lubricated reciprocating compressors are produced in Leipzig. The larger compressors are manufactured in Übach-Palenberg, and the smaller ones are built in Wurzen. The core competence in the production of compressors has also been expanded through the acquisition of Stasskol, a manufacturer of piston rings and sealing systems. [7]

4. Diaphragm compressor - Wikipedia

   en.wikipedia.org/wiki/Diaphragm_compressor

   A diaphragm compressor is a variant of the classic reciprocating compressor with backup and piston rings and rod seal. The compression of gas occurs by means of a flexible membrane, instead of an intake element. The back and forth moving membrane is driven by a rod and a crankshaft mechanism.

5. Component parts of internal combustion engines - Wikipedia

   en.wikipedia.org/wiki/Component_parts_of...

   A piston is a component of reciprocating engines. It is located in a cylinder and is made gas-tight by piston rings. Its purpose is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and/or connecting rod. In two-stroke engines the piston also acts as a valve by covering and uncovering ports in the cylinder ...

6. Diving air compressor - Wikipedia

   en.wikipedia.org/wiki/Diving_air_compressor

   Filling a cylinder from the panel Low pressure breathing air compressor intended for use with airline diving equipment. High pressure diving compressors are generally three- or four-stage-reciprocating air compressors that are lubricated with a high-grade mineral or synthetic compressor oil free of toxic additives (a few use ceramic-lined cylinders with O-rings, not piston rings, requiring no ...

7. Break-in (mechanical run-in) - Wikipedia

   en.wikipedia.org/wiki/Break-in_(mechanical_run-in)

   The break-in period required has changed over the years with improved piston ring materials and designs. In reference to small engines, the break-in period now (5–10 hours) is short in comparison with that of engines of the past. Aluminum cylinder bore engine piston rings break-in faster than those used on cast iron cylinder bores. [2]