Title:
HYDRAULIC DAMPER
Document Type and Number:
WIPO Patent Application WO/2020/016916
Kind Code:
A1
Abstract:
A hydraulic damper (10) is provided with a plunger (72) which can adjust a suspension spring (34) in an extension and contraction direction, a jack chamber (73) which is filled with oil (Ju) capable of pushing out the plunger (72) in an advance direction, and a pump case (81) which is disposed so that the oil (Ju) can flow between the pump case (81) and the jack chamber (73). A pump piston (82) is accommodated in the pump case (81) so as to be capable of reciprocating. The pump piston (82) divides the inside of the pump case (81) into a pump chamber (85) which communicates with the jack chamber (73) and a gas chamber (86) which is filled with a pressurized gas (Gs). A threaded shaft (83) engaged with the pump piston (82) is disposed in the gas chamber (86) and is rotated by a drive section (84).
Inventors:
MURAKAMI YOSUKE (JP)
Application Number:
PCT/JP2018/026679
Publication Date:
January 23, 2020
Filing Date:
July 17, 2018
Export Citation:
Assignee:
SHOWA CORP (JP)
International Classes:
F16F9/46
Foreign References:
| JP2008308029A | 2008-12-25 | |||
| JP2014148205A | 2014-08-21 | |||
| JP2007253921A | 2007-10-04 | |||
| JPS5931507U | 1984-02-27 | |||
| JP2005121060A | 2005-05-12 | |||
| JP2005014887A | 2005-01-20 |
Attorney, Agent or Firm:
SHIMODA, Yo-ichiro et al. (JP)
Download PDF:
Previous Patent: SEMICONDUCTOR DEVICE PRODUCTION METHOD, SUBSTRATE TREATMENT DEVICE, AND PROGRAM
Next Patent: VALVE DEVICE
Next Patent: VALVE DEVICE