Title:
ROCKER ARM MECHANISM AND ENGINE ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2022/052337
Kind Code:
A1
Abstract:
A rocker arm mechanism and an engine assembly. The rocker arm comprises a rocker shaft (1), a rocker arm (2), a valve clearance adjusting device (3), a valve mechanism (4) and a control valve (5). The rocker arm (2) is rotatably arranged on the rocker shaft (1). The valve mechanism (4) comprises a valve bridge (41). A column chamber (21) is arranged on the rocker arm (2). The valve clearance adjusting device (3) comprises a hydraulic tappet (31) slidably arranged in the column chamber (21). The column chamber (21) supplies oil through an oil supply passage (22). The control valve (5) can open or close the oil supply passage (22). When the control valve (5) opens the oil supply passage (22), the hydraulic tappet (31) can be abutted against the valve bridge (41) to eliminate the gap between the valve bridge (41) and the hydraulic tappet (31).
Inventors:
GUO SHENGGANG (CN)
WANG FEI (CN)
XU CHENG (CN)
WANG FEI (CN)
XU CHENG (CN)
Application Number:
PCT/CN2020/134240
Publication Date:
March 17, 2022
Filing Date:
December 07, 2020
Export Citation:
Assignee:
WEICHAI POWER CO LTD (CN)
International Classes:
F01L1/18; F01L1/245; F01L13/06
Domestic Patent References:
| WO1999032773A1 | 1999-07-01 | |||
| WO1993025803A1 | 1993-12-23 |
Foreign References:
| GB893092A | 1962-04-04 | |||
| CN201358826Y | 2009-12-09 | |||
| US6253730B1 | 2001-07-03 | |||
| CN110425015A | 2019-11-08 | |||
| CN202010941905A | 2020-09-09 | |||
| CN201010212462A | 2010-06-29 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
Download PDF: