- 专利标题: Flow control for aspirators producing vacuum using the venturi effect
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申请号: US14565088申请日: 2014-12-09
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公开(公告)号: US10221867B2公开(公告)日: 2019-03-05
- 发明人: Keith Hampton , David Fletcher , Brian M. Graichen , Rex Bravo , James H. Miller , Matt Gilmer , Andrew Niedert
- 申请人: Keith Hampton , David Fletcher , Brian M. Graichen , Rex Bravo , James H. Miller , Matt Gilmer , Andrew Niedert
- 申请人地址: US MI Troy
- 专利权人: Dayco IP Holdings, LLC
- 当前专利权人: Dayco IP Holdings, LLC
- 当前专利权人地址: US MI Troy
- 代理机构: FisherBroyles, LLP
- 代理商 Susan M. Oiler
- 主分类号: F04F5/20
- IPC分类号: F04F5/20 ; F16K3/18 ; F04F5/46 ; F04F5/52
摘要:
An aspirator for creating vacuum is disclosed that includes a housing defining a fluid passageway with a first tapering portion and a second tapering portion. Each tapering portion has a larger internal opening and a smaller internal opening, the smaller openings facing one another. The aspirator includes a gate positioned between and in fluid communication with the first and second tapering portions, the gate having a first Venturi tube with a Venturi opening creating vacuum when fluid flows in a direction and a second Venturi tube with a Venturi opening that creates vacuum when fluid flows in the opposite direction. The Venturi openings are in fluid communication with a suction port, and the first and second Venturi tubes may provide different mass flow rates through the aspirator. An engine system having an aspirator with a gate having a first bore and a second bore and an actuator is also disclosed.
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