Resonator for internal combustion engines

Details Resonator for internal combustion engines Resonator for internal combustion engines

1983-12-08

1985-09-10

Feinberg, Craig R.

Internal-combustion engines

Multiple cylinder

60312, 181182, F02B 2702, F02M 3510

Patent

active

045399476

ABSTRACT:
A resonator for internal combustion engines, having an enclosed chamber of predetermined volumn connected to an intake duct by a tubular connecting member which is composed of an external member and an internal member. The internal member is disposed within the external member and moved by an actuator which is controlled by an electrical signal corresponding to a resonant frequency calculated by a computer in synchronism with engine rotational speeds. The resonator thereby functions to absorb resonant noises from the engines by appropriately changing the length and/or cross-sectional area of the tubular connecting member.

REFERENCES:
patent: 418418 (1889-12-01), Nash
patent: 1462654 (1923-07-01), Philip
patent: 1987160 (1935-01-01), Saives
patent: 2720873 (1955-10-01), Pick
patent: 3254484 (1966-06-01), Kopper
patent: 4359028 (1982-11-01), Fiala
patent: 4422415 (1983-12-01), Matsuo et al.

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