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Title:
HYDRAULIC PUMP
Document Type and Number:
Japanese Patent JPH05316714
Kind Code:
A
Abstract:

PURPOSE: To feed conductive hydraulic oil by an electromagnetic force for operating the oil.

CONSTITUTION: A pair of electrodes 16, 17 are so oppositely disposed in a pump body 14 for forming an oil passage in which conductive hydraulic oil flows as to form a current passage substantially perpendicular to the oil passage, and an electromagnetic coil 12 provided as magnetic field generating means out of the body 14 generates magnetic fields substantially perpendicular to both the oil and current passages. Thus, the oil is fed by an electromagnetic force generated according to Fleming's left-hand rule to switch the feeding direction of the oil or freely vary discharge pressure or flow rate in response to polarity of an applied voltage, thereby performing high driving efficiency from low pressure to high pressure.


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JPH01244175RADIAL PISTON PUMP
Inventors:
Moriya, Naoyuki
Application Number:
JP1992000119001
Publication Date:
November 26, 1993
Filing Date:
May 12, 1992
Export Citation:
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Assignee:
SHIN CATERPILLAR MITSUBISHI LTD
International Classes:
F04B1/06; F04B1/07; H02K44/04; (IPC1-7): H02K44/04; F04B1/06
Domestic Patent References:
JP56163803B
JPS6447265A
JPS6426358A
Attorney, Agent or Firm:
湯浅 恭三 (外6名)