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Breathing assistance apparatus
专利权人:
Neil Prime;Paul Moody;Glenn Whyte;Bronwyn Nicola Cotter;Matthew Jon Payton
发明人:
Paul Moody,Bronwyn Nicola Cotter,Neil Prime,Glenn Whyte,Matthew Jon Payton
申请号:
US10357753
公开号:
US09750905B2
申请日:
2003.02.04
申请国别(地区):
US
年份:
2017
代理人:
摘要:
A pressure regulating device includes a housing having an inlet, a main outlet, an J an external venting outlet. An internal venting aperture is between the inlet and the external venting outlet. A valve is between the external venting outlet and the internal venting aperture. When the pressure of gases in the flow path is below a predetermined level, the valve at least partially blocks the internal venting aperture. When the pressure is above the predetermined level, the valve opens to allow at least a portion of the gases to flow from the inlet through the internal venting aperture and the external venting outlet. The valve is shaped to open in such a manner that the portion of gases flowing varies with the flow rate, such that the pressure at the main outlet is substantially constant over the flow rate range.
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中国工程科技知识中心
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