Title:
流量制限器を備える独立絞り弁
Document Type and Number:
Japanese Patent JP2014501363
Kind Code:
A
Abstract:
An independent metering valve (IMV) assembly is disclosed that includes a metering stem including an inlet. The IMV assembly also includes a hydro-mechanical control valve in communication with a fluid source and the inlet. The control valve also including a spool with a closed end and an open end. The control valve includes a biasing member that biases the control valve or spool towards an open position thereby establishing communication between the fluid source and the inlet. The control valve also including a load signal line providing communication between an outlet of the control valve upstream of the inlet and the closed end of the spool. Wherein high pressure in the load signal line allowing the control valve to move towards a closed position thereby overcoming bias of the biasing member and reducing flow to the inlet during a high pressure condition.
Inventors:
John Ferrers
Alexander Igerja
Mar Pong Fei
Matthew Beth Corner
Alexander Igerja
Mar Pong Fei
Matthew Beth Corner
Application Number:
JP2013544514A
Publication Date:
January 20, 2014
Filing Date:
November 29, 2011
Export Citation:
Assignee:
CATERPILLAR INCORPORATED
International Classes:
F15B11/05; F15B11/08
Domestic Patent References:
| JP2009510357A | 2009-03-12 | |||
| JPS5969503A | 1984-04-19 | |||
| JPS60146901A | 1985-08-02 |
Attorney, Agent or Firm:
Patent Business Corporation Tani/Abe Patent Office