Intake device for internal combustion engine and method of measuring intake air amount
AssigneeKeihin Corporation
InventorTakayuki Shimatsu
Life of this patent
Estimating the term…
Abstract
An intake device for an internal combustion engine includes a restriction valve provided in an air intake path of the engine, and an air flow rate sensor for measuring the amount of air suctioned into the air intake path which is provided on the downstream side of the restriction valve. The air flow rate sensor includes an air flow path where a sensor element is provided. The air flow sensor is set in the air intake path with a predetermined angle between the axis of the air flow path and the axis of the air intake path.
Claims6
An air intake device of an internal combustion engine, comprising:
- a restriction valve provided in an air intake path of the internal combustion engine;
- and an air flow rate sensor, provided in the air intake path and disposed on the downstream side of the restriction valve, for measuring the flow amount of air suctioned into the air intake path;
- wherein
- the air flow rate sensor comprises;
- an air flow path which is formed linearly along the axis thereof and which is provided so that the axis thereof is inclined with respect to the axis of the air intake path;
- and
- a sensor element provided in the air flow path and disposed on the axis of the air intake path.
A method of measuring air intake amount of an internal combustion engine,
- comprising:
- suctioning air into an air intake path of the internal combustion engine;
- and
- measuring the amount of the suctioned air into the air intake path by using an air flow rate sensor provided in the air intake path and disposed on the downstream side of a restriction valve wherein between;
- the air flow rate sensor comprises:
- an air flow path which is formed linearly along the axis thereof and which is provided so that the axis thereof is inclined with respect to the axis of the air intake path;
- and
- a sensor element provided in the air flow path and disposed on the axis of the air intake path.
Dependencies are inferred from the claim text.