Title:
DEVICE FOR REGULATING DISPLACEMENT OF SWASH PLATE PUMP
Document Type and Number:
WIPO Patent Application WO/2017/110274
Kind Code:
A1
Abstract:
A device for regulating the displacement of a swash plate pump is provided with: a tilting piston inserted in a slidable manner in a housing hole in a housing and pressing the swash plate of the swash plate pump; a sleeve for forming a control pressure chamber between the sleeve and the tilting piston and having a pump port, a tank port, and an output port; a spool held in a slidable manner by the sleeve and switching between a state in which the output port is in communication with either the pump port or the tank port, and a state in which the output port is shut off from the pump port and the tank port; a tilting spring for pressing the tilting piston and the spool so that the tilting piston and the spool will move away from each other; and a solenoid including a rod for pressing the spool from the side opposite the tilting spring. The sleeve has a reaction chamber formed on the side opposite the control pressure chamber and has a communication passage for connecting the control pressure chamber to the reaction chamber.
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Inventors:
MIURA HIDETOSHI
GOTO MASAHIRO
GOTO MASAHIRO
Application Number:
PCT/JP2016/083084
Publication Date:
June 29, 2017
Filing Date:
November 08, 2016
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
F04B1/32; F04B49/12
Foreign References:
| US20140116242A1 | 2014-05-01 | |||
| JP4691299B2 | 2011-06-01 | |||
| JP2015529297A | 2015-10-05 |
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
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