FLUID FLOW CONTROL VALVE
- 专利权人:
- BEATRICE FOODS CO.
- 发明人:
- H. CHOW
- 申请号：
- AU19810069669D
- 公开号：
- AU6966981(A)
- 申请日:
- 1981.04.21
- 申请国别(地区):
- 澳大利亚
- 年份:
- 1981
- 代理人:
- 摘要：
A device to control the flow of fluid uses a cam and ratchet wheel. A valve is operated by the cam portion of the wheel, which bears against the valve stem causing it to open. Fluid flow causes a pawl to drive the ratchet portion of the wheel, rotating the wheel until the valve stem bears against a low point in the cam, permitting the valve to close. A part of the ratchet portion does not contain ratchet teeth, in which area the pawl cannot drive the wheel. In this area, the cam has an increasing radius from a radius corresponding to a closed valve, to a radius corresponding to a fully open valve. This permits manual control of fluid flow without disengagement of the device.
- 来源网站：
- 中国工程科技知识中心
