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Title:
VALVE COVER ASSEMBLY, HYDRAULIC VALVE GROUP, HYDRAULIC DRIVING SYSTEM, AND OPERATION VEHICLE
Document Type and Number:
WIPO Patent Application WO/2023/115747
Kind Code:
A1
Abstract:
A valve cover assembly, a hydraulic valve group, a hydraulic driving system, and an operation vehicle. The valve cover assembly comprises: a valve cover (13), the valve cover (13) being provided with an emergency oil port (132), and an oil cavity, which communicates with the emergency oil port (132); and an isolation piston (5), which is arranged in the oil cavity and is in sliding fit with same.

Inventors:
LIU YUANKAI (CN)
LI JUN (CN)
YANG MIN (CN)
Application Number:
PCT/CN2022/085106
Publication Date:
June 29, 2023
Filing Date:
April 02, 2022
Export Citation:
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Assignee:
SANY AUTOMOBILE MFG CO LTD (CN)
International Classes:
F15B13/02; F15B1/02; F15B21/00; F16K31/06; F16K35/02
Foreign References:
JP2913067B21999-06-28
CN103603840A2014-02-26
CN203531842U2014-04-09
CN2596135Y2003-12-31
CN101294590A2008-10-29
JP2002339917A2002-11-27
CN214466473U2021-10-22
KR101478199B12014-12-31
CN108488467A2018-09-04
CN105570473A2016-05-11
Attorney, Agent or Firm:
YOULINK INTELLECTUAL PROPERTY LAW FIRM (CN)
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