Title:
【発明の名称】マルチポート自動調節式比例圧力制御弁
Document Type and Number:
Japanese Patent JP2575908
Kind Code:
B2
Abstract:
A multi-port, self-regulating, proportional control valve preferably uses a load output feedback system to produce working fluid load output pressures that are proportional to pilot control fluid pressures. In some embodiments, the control valve is programmable and capable of different load output pressures selected either prior to, or during, operation. The control valve apparatus according to the present invention is capable of a center-off or neutral condition that requires substantially no pilot control flow when there is no control valve output flow.
Inventors:
Charles A. Weiler
Logan Etch Matisse
Logan Etch Matisse
Application Number:
JP33992789A
Publication Date:
January 29, 1997
Filing Date:
December 26, 1989
Export Citation:
Assignee:
Ross Operating Valve Company
International Classes:
F15B13/043; F15B9/03; F15B11/02; F15B13/042; (IPC1-7): F15B13/043
Domestic Patent References:
| JP5236280A | ||||
| JP4896996A | ||||
| JP601403A | ||||
| JP6215602U |
Attorney, Agent or Firm:
Shoichi Hase (1 person outside)