Title:
BRAKE DEVICE FOR INERTIA BODY DRIVING HYDRAULIC CIRCUIT
Document Type and Number:
WIPO Patent Application WO/1994/012794
Kind Code:
A1
Abstract:
A brake device for an inertia body driving hydraulic circuit characterized in that first and second oil ports (11, 12) are formed in parallel to each other in a housing (10) so as to connect said first and second oil ports to an inertia body driving actuator (18), that said first and second oil ports are caused to communicate with each other via a communicating oil port (13), which is then caused to communicate with a tank port (14), that first and second mounting holes (15, 16) are formed in said housing in such a manner that they open to said first and second oil port and are concentric with said communicating oil port, and that first and second suction safety valves (17, 17) having suction and relief functions are provided in said first and second mounting holes, respectively. With this brake device, since the first and second oil ports are formed in parallel to each other in the housing, the first and second oil ports are made to communicate with each other via the communicating oil port, and the suction safety valves are respectively provided in the first and second mounting holes which are concentric with the communicating port, the shape of the oil ports are simple for case of working. Moreover, pressure oil in the tank port is sucked into the first and second oil ports in a linear fashion via the communicating oil port to reduce the pressure loss, thereby making it possible to positively prevent cavitation.
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Inventors:
OSHIRO MITSURU (JP)
Application Number:
PCT/JP1993/001753
Publication Date:
June 09, 1994
Filing Date:
December 01, 1993
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
OSHIRO MITSURU (JP)
OSHIRO MITSURU (JP)
International Classes:
E02F9/12; E02F9/22; F15B11/00; F15B11/044; F16D57/06; (IPC1-7): F15B11/00; E02F9/22
Foreign References:
| JPS551441B2 | 1980-01-14 | |||
| JPS4110446B1 |
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