公开(公告)号：US20150283486A1

公开(公告)日：2015-10-08

申请号：US14746569

申请日：2015-06-22

Applicant: Baldwin Filters, Inc.

Inventor： Greg Fisher

IPC: B01D35/147

CPC classification number: B01D35/147 ,  B01D27/08 ,  B01D27/108 ,  B01D27/144 ,  B01D35/30 ,  B01D2201/0461 ,  B01D2201/188 ,  B01D2201/208 ,  B01D2201/291 ,  B01D2201/4038 ,  Y10S210/13 ,  Y10S210/17

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 that the full flow portion at a second predetermined temperature below the operating temperature.

公开(公告)号：US10112134B2

公开(公告)日：2018-10-30

申请号：US14746569

申请日：2015-06-22

Applicant: Baldwin Filters, Inc.

Inventor： Greg Fisher

IPC: B01D27/14 ,  B01D35/147 ,  B01D35/30 ,  B01D27/08 ,  B01D27/10

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.