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Title:
ENGINE ROCKER ARM MECHANISM, ENGINE TWO-STROKE CYCLE BRAKING SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2022/170981
Kind Code:
A1
Abstract:
Provided is an engine rocker arm mechanism, comprising a first rocker arm (10), a second rocker arm (210), and a connection mechanism (100). One end of the first rocker arm (10) and one end of the second rocker arm (210) are rotatably connected to a shaft (120); the other end of the first rocker arm (10) is close to a valve (300) of an engine; and the other end of the second rocker arm (210) is close to a cam (230) of the engine. The connection mechanism (100) comprises a connection piston (160) and a mechanical linkage (150). The connection piston (160) is placed in the first rocker arm (10) or the second rocker arm (210). The linkage mechanism (150) is rotatably connected to one end of the connection piston (160). The extension and retraction of the mechanical linkage (150) changes the length of the connection mechanism (100) between the first rocker arm (10) and the second rocker arm (210), thereby changing the motion transmitted by the engine cam to the engine valve. The rocker arm mechanism is used for cylinder deactivation and braking of the engine, and is simple in structure and good in reliability. Also provided are an engine two-stroke cycle braking system and method employing the engine rocker arm mechanism.

Inventors:
ZHU RUJIE (CN)
XING BAOLIANG (CN)
XI ZHENG (CN)
YANG ZHOU (CN)
Application Number:
PCT/CN2022/074127
Publication Date:
August 18, 2022
Filing Date:
January 26, 2022
Export Citation:
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Assignee:
SHANGHAI UNIVERSOON AUTOTECH CO LTD (CN)
International Classes:
F01L1/18; F01L1/20; F01L13/06
Foreign References:
CN215761837U2022-02-08
CN202194698U2012-04-18
CN107023342A2017-08-08
CN106509958B2018-07-10
CN101029582A2007-09-05
DE102010010732A12011-09-15
US20140182528A12014-07-03
US3220392A1965-11-30
US5937807A1999-08-17
US5975251A1999-11-02
US4572114A1986-02-25
US5537976A1996-07-23
US6293248B12001-09-25
US8936006B22015-01-20
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