Invention Grant
- Patent Title: Fluid filtration apparatus and method
- Patent Title (中): 流体过滤装置及方法
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Application No.: US12493037Application Date: 2009-06-26
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Publication No.: US09061222B2Publication Date: 2015-06-23
- Inventor: Greg Fisher
- Applicant: Greg Fisher
- Applicant Address: US NE Kearney
- Assignee: Baldwin Filters, Inc.
- Current Assignee: Baldwin Filters, Inc.
- Current Assignee Address: US NE Kearney
- Agency: Leydig, Voit & Mayer, Ltd.
- Main IPC: B01D35/30
- IPC: B01D35/30 ; B01D27/10 ; B01D27/08

Abstract:
An apparatus and method for filtering a liquid utilize a filter apparatus including a bypass filter, a full flow filter, and a flow balancing element for dividing a total inlet flow of fluid to the filter apparatus into a bypass portion, passing through the bypass filter, and a full flow portion, passing through the full flow filter. The bypass filter has a lower filtering efficiency than the full flow filter element, so that a venturi tube is not required for causing the bypass portion to pass through the bypass filter. The flow balancing element divides the flow into a desired bypass portion and a desired full flow portion, at a predetermined operating temperature. Below the operating temperature, the bypass portion increases and the full flow portion decreases, the bypass portion becoming greater than the full flow portion at a second predetermined temperature below the operating temperature.
Public/Granted literature
- US20090261029A1 Fluid Filtration Apparatus and Method Public/Granted day:2009-10-22
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