Resonance system with variable geometry for the fresh-gas condui

Details Resonance system with variable geometry for the fresh-gas condui Resonance system with variable geometry for the fresh-gas condui

1989-10-04

1990-12-04

Okonsky, David A.

Internal-combustion engines

Multiple cylinder

F02M 3510

Patent

active

049745689

ABSTRACT:
An internal combustion engine includes an engine cylinder having a suction opening; a piston arranged in the engine cylinder for reciprocating motion therein; a fresh-gas conduit system for supplying the cylinder with fresh gas; and a resonance system forming part of the fresh-gas conduit system. The resonance system includes a resonance vessel having a resonance vessel outflow opening communicating with the suction opening of the engine cylinder and a plurality of resonance pipes each having one end provided with a pipe inflow opening for fresh gas and an opposite end provided with a pipe outflow opening for fresh gas merging into the resonance vessel. The resonance system further has a closing element having an open and a closed position for allowing and, respectively, preventing flow of fresh gas through one of the resonance pipes to connect the last-named resonance pipe to and, respectively, disconnect it from the resonance system for changing a resonance frequency of the resonance system.

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patent: 4838215 (1989-06-01), Yasuda et al.
patent: 4858569 (1989-08-01), Cser et al.

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