Patent ID: 7059184
Filing Date: 2006-06-13
Classification: G01F

Abstract:
1. A split-flow-type flow sensor apparatus comprising: a main flow passage; a bypass flow passage with a thermal flow sensor said bypass flow passage having an entrance directly disposed in a portion of said main flow passage, a first straight pipe part extending along said main flow passage from the entrance, a bent part placed downstream from said first straight pipe part, a second straight pipe part placed downstream from the bent part and being provided with said thermal flow sensor placed on a wall face of said second straight pipe part, and an exit to said main flow passage placed downstream from said second straight pipe part; a first rectification member placed upstream from the entrance of said bypass flow passage in said main flow passage; a second rectification member placed upstream from said thermal flow sensor in said second straight pipe part of said bypass flow passage; and a fixing member for resiliently fixing said second rectification member to said second straight pipe part.