Installation method of end-clearance-free V-shaped non-metal piston ring and completely clearance-free type compressor structure using piston ring
A kind of piston ring, non-metallic technology, applied in the field of complete clearance-free structure of piston reciprocating compressor, can solve the problem of unavoidable clearance at the end of C-type piston ring, etc.
Inactive Publication Date: 2015-07-22
梁嘉麟
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[0006] Furthermore, JP8-9985B2 discloses an oil-free piston reciprocating compressor using piston rings made of a polymer including polytetrafluoroethylene (PTFE) or a polytetrafluoroethylene resin, however, in its Structurally, the end clearance of the piston ring is still inevitable, that is, the end clearance of the C-type piston ring is still inevitable
[0007] Furthermore, JP8-9985B2 discloses an oil-free piston reciprocating compressor using piston rings made of a polymer material including polytetrafluoroethylene (PTFE) or a polytetrafluoroethylene resin, however, in In terms of its structure, the existence of the end clearance of the piston ring is still inevitable, that is, the end clearance of the C-type piston ring is still inevitable
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[0031] figure 1 It shows the structure overview of a crankshaft-driven piston reciprocating compressor with "no clearance". It belongs to the most practical typical horizontal type with low reciprocating frequency and large displacement.
[0032] figure 2 It indicates the situation that the piston 5 is carrying the V-shaped end gap F non-metallic piston ring U together, and against the exhaust valve plate 3 when it travels outside the opening of the cylinder 6 during the forward compression and exhaust stroke. Obviously:
[0033] A. Before the piston 5 comes into contact with the exhaust valve plate 3, a high-pressure air cushion has been formed in the cylinder 6 between the two that will relieve the collision between the piston 5 and the exhaust valve plate 3;
[0034] B. This means: the piston 5 has squeezed all the compressed high-pressure gas into the high-pressure zone H;
[0035] C. It should be ensured in the structural design: V-shaped end gap F non-metallic piston ring U can ...
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The invention provides an installation method of an end-clearance-free V-shaped non-metal piston ring and a completely clearance-free type compressor structure using the piston ring. The installation method is the same as the method of enabling a bicycle steel ring to be sleeved with a cover tire. The completely clearance-free type compressor structure guarantees that a completely clearance-free contacting state without any geometric space can be formed among a piston (5), a discharge valve plate (3), a tapered air suction valve block (4), an air cylinder (6) and the piston ring (K) (in an air extraction process). By utilizing the completely clearance-free instantaneous contacting state, the completely clearance-free type compressor structure using the piston ring enables a piston reciprocating compressor to appear with a brand new appearance, creates conditions for enabling the gas displacement of a piston to reach 100% or greatly improving the compression ratio, further becomes a new generation product of the piston reciprocating compressor, and even may become a new generation product of most types of compressors due to the extremely high cost performance.
Description
Technical field [0001] The present invention relates to the technology of a piston reciprocating compressor, in particular to an installation method using a V-shaped non-metallic piston ring with no end gap and a technology of a completely gapless structure of the piston reciprocating compressor using the piston ring. Background technique [0002] Most of the compressor types currently available are conventional piston compressors driven by crankshafts. They have the following comprehensive characteristics: simple manufacture, long service life, low material requirements, and other types of compressors that cannot be compared with them. , This is the main reason why it has not been sorrow since it came out. [0003] Piston reciprocating compressors, like other compressors, are troubled by the unsolvable "clearance" problem in structure, so its exhaust efficiency and / and compression ratio are always difficult to improve. ——For example: when the compression ratio is close to "10", i...
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IPC IPC(8): B25B27/12F04B39/00F04B39/10F04B39/06
CPCF04B39/00F04B39/0016F04B39/042F04B39/06F04B39/10F04B39/1013B23P11/02B23P19/02B25B27/12
Inventor 梁嘉麟
Owner 梁嘉麟