VARIABLE COMPRESSION RATIO ENGINE

WIPO Patent Application WO/2016/110232

A1

A variable compression ratio engine, comprising a piston (1), connecting rods, and a crankshaft (8); the connecting rods comprise a top connecting rod (3) and a bottom connecting rod (6); the top end of the top connecting rod (3) is connected to the piston (1) by means of a piston pin (2); the bottom end of the top connecting rod (3) is connected to a beam (4) by means of a connecting rod pin (9); one end of the beam (4) is connected to the top end of the bottom connecting rod (6) by means of a left pin (5); the bottom end of the bottom connecting rod (6) is connected to the crankshaft (8) by means of a connecting rod journal; the other end of the beam (4) is connected to a control rod (13) by means of a right pin (14); the top end of the control rod (13) is provided with an elastic element; the bottom end of the control rod (13) is provided with a groove; a cross pin (12) is provided in the groove; a wheel (11) is turnably connected to the bottom end of the control rod (13) by means of the cross pin (12); the control rod (13) can only move up and down; a cam (10) is proved below the wheel (11) and contacts same; a crankshaft sprocket (32) at one end of the crankshaft (8) drives the cam (10) to rotate by means of a transmission element; the cam rotates once for every two crankshaft rotations. The variable compression ratio engine improves engine output efficiency, enhancing power and saving fuel.

FAN WEIJUN (CN)

PCT/CN2016/070048

July 14, 2016

January 04, 2016

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FAN WEIJUN (CN)

F02D15/02

CN204458055U	2015-07-08
CN104500241A	2015-04-08
CN101446237A	2009-06-03
CN103195566A	2013-07-10
KR101405176B1	2014-06-10
US8720393B2	2014-05-13

CHOFN INTELLECTUAL PROPERTY (CN)
北京超凡志成知识产权代理事务所（普通合伙） (CN)

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