Title:
PILOT HYDRAULIC SYSTEM CONTROLLER FOR CONTROLLING MAIN HYDRAULIC SYSTEM
Document Type and Number:
Japanese Patent JP3741493
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pilot hydraulic system controller responding to the low pressure of the pilot hydraulic system.
SOLUTION: The pilot hydraulic system controller comprises a pilot controller valve 20 for controlling flowing of hydraulic fluid for actuating first hydraulic system valve, a pilot controller lockout valve 40, and a detent control circuit 50 selectively supply power to a detent solenoid coil 64 connected to the pilot controller valve. The detent control circuit comprises a switch means 60 which selectively disables the detent solenoid coil when the pilot controller lockout valve is actuated to disable hydraulically the pilot controller, such that the detent solenoid coil will not operate the pilot controller valve when the pilot controller valve is hydraulically disabled.
Inventors:
Mark Dee Gibson
Michael e green
David G Surridge
Michael e green
David G Surridge
Application Number:
JP28975596A
Publication Date:
February 01, 2006
Filing Date:
October 31, 1996
Export Citation:
Assignee:
CATERPILLAR INCORPORATED
International Classes:
E02F9/20; F15B20/00; F15B11/028; F15B13/043; F15B21/08; (IPC1-7): F15B20/00; E02F9/20; F15B11/028; F15B13/043
Domestic Patent References:
| JP61464U | ||||
| JP583061U | ||||
| JP270222U | ||||
| JP2136909A | ||||
| JP59164803U | ||||
| JP4112945U | ||||
| JP57202073U | ||||
| JP8302748A | ||||
| JP971388A | ||||
| JP9124270A |
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo