Internal combustion engine

Details Internal combustion engine Internal combustion engine

2007-08-21

2009-11-24

Kamen, Noah (Department: 3741)

Internal-combustion engines

Intake manifold

C123S193500

Reexamination Certificate

active

07621248

ABSTRACT:
To secure enough of an amount of intake air and an increase in a flow rate in a balanced manner to improve a filling efficiency for increasing power in an internal combustion engine. A combustion chamber is formed between a cylinder block and a cylinder head opposite to a top portion of a piston slidably fitted in the cylinder block. An intake path extends from an inlet pipe, separately or integrally, connected to the cylinder head to the cylinder head and is in communication with an intake valve port that opens to the top surface of the combustion chamber to be opened/closed with the intake valve. Intake paths are provided with a pair of throttle portions arranged with an interval in an air flow direction of the intake paths and an expanding portion positioned between the throttle portions.

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