Title:
HYDRAULIC CYLINDER EXHAUST MECHANISM AND HYDRAULIC ACTUATOR OF HYDRAULIC PARKING LOCK
Document Type and Number:
WIPO Patent Application WO/2021/097787
Kind Code:
A1
Abstract:
A hydraulic cylinder exhaust mechanism, comprising: a ventilation connection port (20), which is provided on a housing (110) of a hydraulic cylinder and comprises a connection port chamber (21) in communication with a liquid chamber (111) of the housing (110); a seal ventilation component (30), which is accommodated in the connection port chamber (21); and a cover component (40), which is mounted to the ventilation connection port (20) and holds the seal ventilation component (30) in the connection port chamber (21). The cover component (40) is provided with exhaust holes (41), and the seal ventilation component (30) and/or the ventilation connection port (20) are provided with a gas communication passage (311) allowing the exhaust holes (41) to be in communication with the liquid chamber (111).
Inventors:
ZHENG FEIXIANG (CN)
Application Number:
PCT/CN2019/120137
Publication Date:
May 27, 2021
Filing Date:
November 22, 2019
Export Citation:
Assignee:
SCHAEFFLER TECHNOLOGIES AG (DE)
ZHENG FEIXIANG (CN)
ZHENG FEIXIANG (CN)
International Classes:
F16D65/14
Domestic Patent References:
| WO2005061294A1 | 2005-07-07 |
Foreign References:
| CN1922415A | 2007-02-28 | |||
| CN202923632U | 2013-05-08 | |||
| CN1934367A | 2007-03-21 | |||
| CA2568783A1 | 2007-12-14 |
Attorney, Agent or Firm:
LINDA LIU & PARTNERS (CN)
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