Flow passage member structure

摘要

A flow passage member structure includes a first member and a second member. The first member has a first face formed with at least two openings communicated with flow passages respectively. The second member has a second face formed with openings communicated with flow passages respectively. A gasket keeps a fluid flowing through a first one of the flow passages away from the opening of a second one of the flow passages, and is held by the first face and the second face therebetween so that the flow passages of the first member and the flow passages of the second member are communicated in sealed manner. A circulating passage is defined by the gasket and at least the first face so that the fluid flowing through the first one of the flow passages circulates around a periphery of the second one of the flow passages.