Two-stroke internal combustion engine with improved air intake s

Details Two-stroke internal combustion engine with improved air intake s Two-stroke internal combustion engine with improved air intake s

1993-04-15

1995-05-02

Cross, E. Rollins

Internal-combustion engines

Engine speed regulator

Charge volume varying

123 73A, F02M 3510

Patent

active

054109990

ABSTRACT:
A two-stroke internal combustion engine comprising an engine block, a plurality of crankcases and including a mounting surface having therein a plurality of inlet openings each communicating with a respective one of the crankcases, a throttle housing defining a throttle passage and including a plenum mounting surface, a throttle valve in the throttle passage, and a plenum member which is separable from both the engine block and the throttle housing and which defines a plurality of intake passages each having an outlet end communicating with a respective one of the inlet openings and each having an inlet end communicating with the throttle passage such that the intake of the engine can be tuned solely by modifying the configuration of the plenum member.

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