Oil pump and equipment for non-connecting rod reciprocating-rotary motion conversion mechanism

Abstract

The invention provides an oil pump for a connecting rod-free reciprocating-rotating movement conversion mechanism. The oil pump comprises an oil inlet joint and an oil pump body, wherein the oil inlet joint is arranged at the bottom of a single-action piston; a first oil duct which is communicated with a piston oil duct of a piston body is axially arranged along the oil inlet joint; the oil pump body comprises a pump body and a plunger; a plunger cavity which is opened on the top of the pump body is arranged in the pump body, and an oil inlet is formed on the pump body; the plunger is a column body arranged in the plunger cavity, and an axial second oil duct is arranged in the middle of the plunger; the plunger can move axially along the plunger cavity, when the piston moves toward an oil pan, the oil inlet joint is inserted into the plunger cavity and props against the top face of the plunger, so that the piston moves downward along the plunger cavity; and simultaneously the first oil duct is communicated with the second oil duct. The oil pump can be used for pumping oil into a lubrication loop of the body from the bottom of the oil pan, is reliable in engine oil pressure, and can guarantee the lubricant supply of the mechanism.

Description

technical field [0001] The invention relates to a reciprocating-rotational conversion mechanism, in particular to an oil pump used for the reciprocating-rotational conversion mechanism without connecting rods; the invention also relates to an internal combustion engine and a compressor using the oil pump. Background technique [0002] In traditional internal combustion engines and compressors, the mechanism that realizes the conversion between reciprocating motion and rotary motion is the crank-link mechanism. However, in the crank linkage mechanism, due to the existence of the connecting rod, the internal combustion engine and the compressor of the crank linkage mechanism have defects such as bulky, heavy, and poor balance performance. [0003] In order to solve the above problems, the Chinese patent with the date of examination and approval announcement being December 14, 1988 and the announcement number of CN85100359B discloses a "crank circular slider reciprocating pisto...

AI Technical Summary

Problems solved by technology

However, in the equipment that adopts the crank circular slider mechanism or the end shaft-moving shaft mechanism, since there is no connecting rod, there are no parts similar to the connecting rod movement in the moving parts, so it is difficult to use the traditional crank connecting rod mechanism. The mechanism provides lubrication for the body

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