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U.S. Department of Energy
Office of Scientific and Technical Information

Intake system for internal combustion engine

Patent ·
OSTI ID:6514145
An intake system is described for an internal combustion engine having an intake port to the combustion cylinder. The method comprises a trunk intake passage connected to the intake port, a throttle valve mounted in the trunk intake passage, a pair of intake passages of substantially different lengths directly connected at respective upstream ends thereof into a common intake chamber at spaced locations along the intake chamber. The longer of the pair of intake passages extends substantially about the intake chamber and is connected at its downstream end directly to the trunk intake passage of the throttle valve. The shorter of the pair of intake passages has a downstream end merging at an acute angle into the downstream end of the longer of the pair of intake passages just prior and towards the trunk intake passage relative to airflow going through the passages such that the airflow through the pair of intake passages into the trunk intake passage is promoted.
Assignee:
Honda Giken Kogyo Kabushiki Kaisha, Tokyo
Patent Number(s):
US 4664076
OSTI ID:
6514145
Country of Publication:
United States
Language:
English