Title:
冷却および潤滑バルブを備える油圧ピストン
Document Type and Number:
Japanese Patent JP7369689
Kind Code:
B2
Abstract:
The hydraulic piston (1) forms a hydraulic chamber (5) with a cylinder (4) and has a cylindrical body (6) that receives sealing means (16) and the cylindrical external surface (13) of which is housed with a little play in the cylinder (4) so as to leave an interstitial space (32), the cylindrical body (6) being traversed by a cooling and lubrication duct (7) that can be opened or closed by a cooling and lubrication valve (2) driven in translation by a piston valve actuator (22), so that when the pressure in the hydraulic chamber (5) is low, fluid (11) can pass through a flow calibrating orifice (27) from the hydraulic chamber (5) toward the interstitial space (32), and not when the pressure in the chamber (5) is high.
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Inventors:
RABHI Vianney
Application Number:
JP2020512867A
Publication Date:
October 26, 2023
Filing Date:
July 30, 2018
Export Citation:
Assignee:
RABHI Vianney
International Classes:
F04B1/22; F03C2/00; F16J15/18
Domestic Patent References:
| JP52083006U | ||||
| JP60030378U | ||||
| JP2016530438A |
Foreign References:
| US20170184009 |
Attorney, Agent or Firm:
Patent Attorney Corporation Tanikawa International Patent Office