Air flow sensor with swirl generator
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorAkira Takashima
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Abstract
An air flow sensor includes a duct forming a part of an intake passage, and a detection device. A swirl generating structure is also arranged in the duct to generate a swirl in the duct. A projection extending upstream from the opening at the upstream end of the duct is further disposed on the swirl generating means. Thus, the air flow rate can be accurately detected without requiring a structural member for the intake system.
Claims8
An air flow sensor disposed in an intake passage through which air is supplied to an engine, said sensor including:
- a) a duct forming a part of said intake passage;
- and
- b) a detection device for generating an electrical signal corresponding to the air flow rate within said intake passage;
- said sensor further comprising:
- c) swirl generating means disposed in said duct for generating a swirl therein, and
- d) a projection arranged on said swirl generating means and extending upstream from and exteriorly an opening at an upstream end of said duct.
An air flow sensor disposed in an intake passage through which air is supplied to an engine, said sensor including;
- a) a duct forming a part of said intake passage;
- b) a detection device for generating an electrical signal corresponding to the air flow rate within said intake passage;
- c) swirl generating means disposed in said duct for generating a swirl therein;
- and comprising
- d) a dome-shaped projection extending upstream from and exteriorly an opening at an upstream end of said duct and
- e) at least one opening formed in said dome-shaped projection.
Dependencies are inferred from the claim text.