Intake device of an internal combustion engine

Details Intake device of an internal combustion engine Intake device of an internal combustion engine

1985-06-17

1986-05-06

Cross, E. Rollins

Internal-combustion engines

Means to whirl fluid before, upon, or after entry into...

Having multiple oxidant inlet means

123432, 123188M, F02B 3100

Patent

active

045864691

ABSTRACT:
An engine having an intake port which comprises a straight port and a helical-shaped port which are separated by a separating wall. A control valve is arranged in the inlet portion of the straight port and opens when the engine is operating under a heavy load. A projection is formed on the side wall of the separating wall, which defines the straight port and is located downstream of the control valve. A bypass passage connected to the helix terminating portion of the helical portion of the helical-shaped port is formed in the separating wall. The projection has an arc-shaped cross-sectional tip face which is directed towards the upstream of the intake port. The inlet opening of the bypass passage is formed on the tip face of the projection.

REFERENCES:
patent: 4485774 (1984-12-01), Kanda et al.
patent: 4516544 (1985-05-01), Okumura
patent: 4527519 (1985-07-01), Oonaka et al.

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