U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Hydraulic pressure supply system variable of pressure supply rate depending upon driving condition of automotive vehicle

Patent 4848790 Issued on July 18, 1989. Estimated Expiration Date: Icon_subject April 5, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Vehicle suspension apparatus
Patent #: 4624476
Issued on: 11/25/1986
Inventor: Tanaka ,   et al.

Vehicle suspension apparatus
Patent #: 4695074
Issued on: 09/22/1987
Inventor: Kobayashi ,   et al.

Positively controller automotive suspension system Patent #: 4702490
Issued on: 10/27/1987
Inventor: Yamaguchi ,   et al.

Inventors

Assignee

Application

No. 07/178066 filed on 04/05/1988

US Classes:

280/5.504, Including condition or parameter adjustment occurring at longitudinally spaced vehicle axles280/5.507, Lateral and longitudinal vehicle attitude control (e.g., combinations of antidive, antipitch, antiroll, antisquat, antisway, antiyaw, riding, or suspension height)417/3Pumps in parallel flow paths with common inflow or outflow

Examiners

Primary: Mitchell, David M.
Assistant: Weaver, Ross

Attorney, Agent or Firm

International Classes

B60G 17/015 (20060101)
B60G 17/017 (20060101)
F04B 49/06 (20060101)

Foreign Application Priority Data

1987-04-06 JP

Abstract

A hydraulic pressure supply system includes a discharge rate variable fluid pump. The discharge rate of the fluid pump is controlled to vary depending upon the vehicle driving condition. In the control of the discharge rate of the fluid pump, greater discharge rate is ordered while the vehicle is running, than that during vehicle stopping condition.

PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$18.95more info
 
Sign InRegister
Username  
Password   
forgot password?