VARIABLE COMPRESSION RATIO DRIVING STRUCTURE, ENGINE, AND VEHICLE

WIPO Patent Application WO/2021/170003

A1

A variable compression ratio driving structure, for use in driving an eccentric shaft (5) in a variable compression ratio mechanism to rotate. The variable compression ratio driving structure comprises a harmonic reducer unit fixedly provided on an engine cylinder, and a motor unit fixedly provided on a rigid circular spline (8) in the harmonic reducer unit; a flexspline (9) in the harmonic reducer unit is drivingly connected to one end of the eccentric shaft (5); one end of a rotating shaft (12) of the motor unit extends out and is drivingly connected to a wave generator (10) in the harmonic reducer; the rotation axis of the motor unit is biased to one side of the rotation axis of the harmonic reducer unit; the end of the eccentric shaft (5) connected to the flexspline (9) is provided with an extension end (504) extending to one side of the rotating shaft; an oil channel axially passes through the eccentric shaft (5) to the end of the extension end (504). The variable compression ratio driving structure can give a space for a damper pulley in an engine, and effective work of the driving structure can be effectively ensured. Also provided are an engine and a vehicle.

YANG LE (CN)
LIU TAO (CN)
SU XUZHAO (CN)
ZHANG SHUMIN (CN)
YIN JI (CN)
QU NA (CN)
LIU JUNYU (CN)
DONG GAOFENG (CN)
ZHONG DEHUA (CN)
WANG WENYUAN (CN)
MENG JIN (CN)

PCT/CN2021/077712

September 02, 2021

February 24, 2021

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GREAT WALL MOTOR CO LTD (CN)

F02B75/04; F16H57/04; F16C3/18; F16H57/08

WO2016194510A1

2016-12-08

CN209557101U	2019-10-29
CN209340037U	2019-09-03
JP2010151088A	2010-07-08
CN209483803U	2019-10-11

RUNPING & PARTNERS (CN)

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