发明授权
- 专利标题： Hydraulic circuit for running a crawler vehicle
- 专利标题（中）： 用于运行履带车的液压回路
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申请号： US815023申请日： 1991-12-31
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公开(公告)号： US5282363A公开(公告)日： 1994-02-01
- 发明人: Kazunori Ogawa , Takuma Endo , Hisashi Nakashima , Yoji Asano
- 申请人： Kazunori Ogawa , Takuma Endo , Hisashi Nakashima , Yoji Asano
- 申请人地址： JPX Osaka
- 专利权人： Teijin Seiki Co., Ltd.
- 当前专利权人： Teijin Seiki Co., Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX3-010002 19901231
- 主分类号： B62D11/08
- IPC分类号： B62D11/08 ; B60K17/10 ; B62D11/02 ; B62D11/18 ; E02F9/12 ; E02F9/22 ; F15B11/044 ; F16D31/02 ; B62D11/00
摘要：
A hydraulic circuit for running a crawler vehicle which comprises a running frame portion provided with motors for running the crawler vehicle and an upper swivel portion turnably disposed on the running frame portion via a swivel joint. Electro-magnetic proportional flow directional control valve (a directional control valves) (15) for controlling the running motors are disposed between the swivel joint (41) and the running motors (19). The number of the high pressure passages in the swivel joint (41) can be reduced, because of increase of pressure resistance, the size of the swivel joint can be small, and accordingly, the hydraulic circuit for running a crawler vehicle can be inexpensive, and possibility for leakage of pressure oil becomes low.
公开/授权文献
- US4697119A Color cathode ray tube having a non-spherical curved mask 公开/授权日：1987-09-29
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