Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Induction system for internal combustion engines

Patent ·
OSTI ID:7009479
In an induction system for a supercharged internal combustion engine having an intake, an inlet passage to a chamber of the engine, means for cyclically opening and closing the communication of the inlet passage and the chamber for causing pulsating pressure variations in the inlet passage, a supercharger having an inlet, a compressor element and an outlet, and passage means communicating the intake with the inlet passage without flowing across the supercharger compressor element, communicating the intake with the supercharger inlet, and communicating the supercharger outlet with the inlet passage, the improvement is described comprising reed valve means for restricting the flow through a portion of the passage means until the pressure thereacross exceeds a predetermined value, and a plenum chamber interposed in the passage means between the reed valve means and the inlet passage, the plenum chamber having sufficient volume to dampen the pulsating pressure variations and prevent their transmission to the reed valve means.
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata
Patent Number(s):
US 4760703
OSTI ID:
7009479
Country of Publication:
United States
Language:
English