Patent ID: 7886592
Filing Date: 2011-02-15
Classification: G01F

Abstract:
1. A flow sensor comprising: a body having a first passage disposed on an upstream side of a path through which a fluid flows, a second passage disposed on a downstream side with respect to the first passage, and a throttle section disposed between the first passage and the second passage; a detector disposed in the body and which is capable of detecting a flow rate of the fluid that flows from the first passage toward the second passage; detection passages facing the detector, and further which communicate respectively with the first passage and the second passage, wherein the fluid is made to flow through the detection passages and toward the detector; and a pair of projections, which project respectively from inner wall surfaces of the first and second passages, the detection passages being disposed within interior portions of the projections, wherein the detection passages open into the first and second passages via the projections.