Hinged drive armature type VCR (variable compression ratio) piston mechanism
A piston mechanism and compression ratio technology, which is applied to pistons, engine components, engine control, etc., can solve the problems of numerous sealing parts and complex mechanical structures, and achieve the effects of high reliability, high economic performance and precise compression ratio
Pending Publication Date: 2019-12-10
JILIN UNIV
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Problems solved by technology
[0012] The technical problem to be solved by the present invention is to overcome the problems of complex mechanical structure, numerous parts and poor sealing performance in the prior art, and provide a hinged transmission electric drive type variable compression ratio piston mechanism
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Embodiment Construction
[0031] The present invention is described in detail below in conjunction with accompanying drawing:
[0032] refer to figure 1 , the articulated transmission electric drive type variable compression ratio piston mechanism of the present invention includes the upper part of the piston body 1, the inner sleeve 2, the positioning sleeve 3, the lower part of the piston body 4, the upper half shaft 5, the bearing 6, the cross universal joint 7, Lower axle shaft 8, motor 9, motor seat 10, connecting rod 11, guide plate 12.
[0033] refer to figure 1 The whole piston is divided into two parts, the upper part of the piston body 1 and the lower part of the piston body 4, and two to six guide plates 12 with the same structure and a fan-shaped cross section are evenly distributed in the axial direction on the top annular surface of the lower part of the piston body 4 That is, the height of each guide plate 12 is the same, the width is the same, and the thickness is the same. The center...
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The invention discloses a hinged drive armature type VCR (variable compression ratio) piston mechanism and aims to solve the problems of complicated mechanical structure, various parts and poor sealing performance in the prior art. The hinged drive armature type VCR piston mechanism comprises a piston body upper part, an inner sleeve, a positioning sleeve, a piston body lower part, a shaft, bearings, a candan universal joint, a motor, a motor seat, a connecting rod and guide plates, wherein the motor seat is mounted on an upper bearing of the connecting rod and is in threaded connection, the shaft is divided into an upper half shaft and a lower half shaft, the lower half shaft is fixedly connected with the motor and is connected with the upper half shaft through the candan universal joint,the upper half shaft is connected with the inner sleeve through a key and a nut, the inner sleeve is connected with the piston body upper part through threads and connected with the positioning sleeve through the shaft, the positioning sleeve is fixed through the piston body lower part, the piston body upper part is limited by the guide plates located at the top end of the piston body lower part,a piston pin connects the piston body and the connecting rod through a pin hole, and meanwhile, the piston connecting rod set is in force balance as a whole.
Description
technical field [0001] The invention designs a piston of an automobile engine, more precisely, the invention relates to a hinged drive electric drive type variable compression ratio piston mechanism. Background technique [0002] The compression ratio of the engine refers to the ratio of the cylinder volume when the piston moves to the bottom dead center and the cylinder volume when the piston moves to the top dead center. Increasing the compression ratio can effectively improve the performance and efficiency of the engine. Because the increase in pressure can increase the density of the gas, the distance between molecules will also become smaller, so that the distance between fuel molecules and oxygen molecules will be closer, and the burning speed will be faster; the temperature can make the gas molecules move faster, and the fuel molecules It interacts more easily with oxygen molecules, which makes the mixture easier to ignite. Moreover, the smaller combustion space can ...
Claims
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IPC IPC(8): F02D15/04F02B75/04F02F3/00
CPCF02D15/04F02B75/044F02F3/00
Inventor 苏岩王博金兆辉王忠恕解方喜韩永强
Owner JILIN UNIV