发明授权
- 专利标题: Damping arrangement for damping the oscillations of valve controlled by pressure fluid
- 专利标题(中): 用于阻尼由压力流体控制的阀振荡的阻尼装置
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申请号: US418969申请日: 1989-10-10
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公开(公告)号: US4955194A公开(公告)日: 1990-09-11
- 发明人: Thorkild Christensen , Svend E. Thomsen , Siegfried Zenker
- 申请人: Thorkild Christensen , Svend E. Thomsen , Siegfried Zenker
- 申请人地址: DKX Nordborg DKX Nordborg
- 专利权人: Danfoss A/S,Danfoss A/S
- 当前专利权人: Danfoss A/S,Danfoss A/S
- 当前专利权人地址: DKX Nordborg DKX Nordborg
- 优先权: DEX3733740 19871006
- 主分类号: F15B11/00
- IPC分类号: F15B11/00 ; F15B11/05 ; F15B21/04 ; F16K31/00 ; F16K31/64 ; F16K31/70 ; F16K47/00 ; F16L55/027
摘要:
A damping arrangement for damping the oscillations of valves which are controlled by pressure fluid and the control pressure conduits of which contain a throttle. A characteristic is that initial oscillations can be rapidly stabilized independently of the operating temperature of the pressure fluid. This is accomplished by the throttle having a throttle gap of which the height varies oppositely to the temperature of the pressure fluid so as to compensate fully or partially for changes in the hydraulic resistance that are occasioned by the temperature. The throttle gap is mostly traversed by laminar flow and consequently there is a high hydraulic throttling resistance even at low speeds of flow. The throttle is therefore also adapted effectively to damp small oscillations of the valve element so that the initial oscillations are rapidly stabilized.
公开/授权文献
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