Patent ID: 7651551
Filing Date: 2010-01-26
Classification: B01D,B60T,Y10S

Abstract:
1. A membrane air dryer comprising: a housing with an air inlet at a first end, an air outlet at a second end, a sweep air inlet at the first end, and a sweep air outlet at the first end; a membrane separator having a membrane separator inlet and a membrane separator outlet respectively connected fluidally to the air inlet and the air outlet; a sweep air passage in the housing extending between the membrane separator inlet and the membrane separator outlet, the sweep air passage having a sweep air inlet adjacent the air inlet and having a sweep air outlet adjacent the air inlet; a volume housing defining a volume concentric to and exterior to the membrane separator, the volume housing having a volume housing inlet fluidally connected to the membrane separator outlet and having a volume housing outlet fluidally connected to the sweep air inlet; and a lip provided on the volume housing at the volume housing inlet, the lip overlapping the membrane separator outlet to capture a first portion of air from the membrane separator outlet and direct the air to the sweep air inlet.