Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SUPER-MAGNETROSTRICTIVE FLUID PUMP
Document Type and Number:
Japanese Patent JPH1193830
Kind Code:
A
Abstract:

To provide a super-magnetostrictive liquid pump capable of achieving the pumping action in any condition of reciprocation of a piston rod.

In a super magnetostrictive fluid pump, first and second pump chambers 4, 5 to control the volume by the movement of a piston 3 are demarcated on each side of the working piston 3 to be reciprocated in a cylinder 2 by a super magnetostrictive actuator 7, the fluid is sucked/discharged in/from the pump chambers 4, 5 to achieve the pumping action by the reciprocation of the working piston 3. The first pump chamber 4 demarcated by the working piston 3 is communicated with an actuator 11 through a first check valve 9 and a control valve 10, and communicated with a reservoir 13 through a second check valve 12, the second pump chamber 5 is communicated with the actuator 11 through a third check valve 14 and the control valve 10, and communicated with the reservoir 13 through a hydraulic discharge valve 15 to open the flow passage when the hydraulic pressure of the actuator 11 reaches the prescribed value.


More Like This:
Inventors:
Kawase, Kazuo
Application Number:
JP1997000251829
Publication Date:
April 06, 1999
Filing Date:
September 17, 1997
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
AKEBONO BRAKE RES & DEV CENTER LTD
International Classes:
F04B19/22; F04B9/00; (IPC1-7): F04B9/00; F04B19/22
Domestic Patent References:
JPS60135944A
JPS6280654A
JPS62165660A
Attorney, Agent or Firm:
長瀬 成城