Air induction system for engine
First Claim
1. An internal combustion engine comprising an engine body, a combustion chamber defined at least partially within said engine body, an air induction system arranged to introduce air into the combustion chamber, the air induction system comprising a primary intake passage through which the air flows, a secondary intake passage extending from the primary passage and communicating with the primary passage, the secondary passage adapted to supply at least a portion of the air flowing through the air induction system, a filter disposed in the secondary passage, and an airflow sensor positioned downstream of the filter in the secondary passage to sense a flow amount of the portion of the air flowing through the secondary passage.
2 Assignments
0 Petitions
Accused Products
Abstract
An air induction system for an engine is provided with a flow meter to sense a flow amount of air introduced into a combustion chamber of the engine. The air induction system includes an improved construction that can protect the flow meter from rigorous environment. The construction includes a primary intake passage through which the air flows. A secondary intake passage extends from the primary passage to communicate with the primary passage. At least a portion of the air flows through the secondary passage. A filter is disposed in the secondary passage to filtrate the portion of the air. The flow meter is positioned downstream of the filter in the secondary passage.
19 Citations
30 Claims
- 1. An internal combustion engine comprising an engine body, a combustion chamber defined at least partially within said engine body, an air induction system arranged to introduce air into the combustion chamber, the air induction system comprising a primary intake passage through which the air flows, a secondary intake passage extending from the primary passage and communicating with the primary passage, the secondary passage adapted to supply at least a portion of the air flowing through the air induction system, a filter disposed in the secondary passage, and an airflow sensor positioned downstream of the filter in the secondary passage to sense a flow amount of the portion of the air flowing through the secondary passage.
- 23. An internal combustion engine comprising an engine body, a plurality of moveable members moveable relative to the engine body, the engine body and the moveable members together defining a plurality of combustion chambers, an air induction system arranged to introduce air into the combustion chambers, the air induction system including a voluminous member defining a plenum chamber, a plurality of intake conduits defining at least portions of intake passages connecting the plenum chamber with the combustion chambers, a recessed member coupled with the voluminous member to define an air passage communicating with the plenum chamber, a filter disposed within the air passage to divide the air passage into upstream and downstream portions, and a flow meter positioned in the downstream portion to sense a flow amount of the air flowing through the air passage.
-
30. An internal combustion engine comprising an engine body, a moveable member moveable relative to the engine body, the engine body and the moveable member together defining a combustion chamber, and an air induction system arranged to introduce air into the combustion chamber, the air induction system including an intake conduit through which the air flows, a side conduit extending from the intake conduit, at least a portion of the air flowing through the side conduit, a filter disposed in the side conduit to filtrate the portion of the air, and means for sensing a flow amount of the portion of the air, the sensing means being positioned downstream of the filter in the side conduit.
Specification