Title:
SOUND- AND HEAT-PROOFING APPARATUS OF HYDRAULIC OPERATION VALVE
Document Type and Number:
WIPO Patent Application WO/1991/006465
Kind Code:
A1
Abstract:
This invention relates to a sound- and heat-proofing apparatus of an operation valve of a hydraulic excavator or the like. The apparatus of this invention can reduce the temperature around the operator and hydraulic noise and can improve comfortableness of the operator. To accomplish this object, an engine (2) is mounted through an elastic member (4) on a car body frame (5) in an engine room (1), operation valves (7 and 8) are fitted to a bracket (6) which is fitted to the engine (2), and the engine room (1) is substantially closed by outer casings (9 and 10). A sound-proofing material or a heat-insulating material may be fitted inside the outer casings.
Inventors:
YOSHIDA YASUHIRO (JP)
Application Number:
PCT/JP1990/001349
Publication Date:
May 16, 1991
Filing Date:
October 19, 1990
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
International Classes:
B62D25/10; B60R13/08; B60R16/08; E02F9/08; E02F9/22; F02B77/11; F02B77/13; (IPC1-7): B62D25/10; F02B77/11
Foreign References:
| JPS4737922Y1 | 1972-11-16 | |||
| JPS58139534U | 1983-09-20 | |||
| JPS5717881U | 1982-01-29 |
Other References:
See also references of EP 0499640A1
Attorney, Agent or Firm:
Hashizume, Yoshihiko (3-6 Akasaka 2-chom, Minato-ku Tokyo 107, JP)
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