Admission manifold of modulatable impedance and low head loss

Details Admission manifold of modulatable impedance and low head loss Admission manifold of modulatable impedance and low head loss

1995-03-06

1996-01-02

Macy, Marquerite

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

12318456, 12318457, F02B 2702, F02M 3510

Patent

active

054798850

ABSTRACT:
The admission manifold comprises a plenum chamber (1) downstream from a butterfly valve (2) and defining a resonance volume, an air inlet diffuser (6), an inlet (8) connected to the outlet from the butterfly valve (2), an air flow guide (11), and as many suction ducts (15) as there are cylinders in the engine, each duct feeding a corresponding cylinder thereof. The guide (11) serves to share admission air coming from the diffuser (6) between the ducts (15), and it is mounted downstream from the diffuser (6) in such a manner that the outlet (10) from the diffuser (6) opens out towards the tubular inlet (12) of the guide (11) which has an upstream edge spaced apart transversely from the downstream edge of the diffuser (6) by a permanent diaphragm. The diffuser (6), the guide (11), and at least an upstream portion of each duct (15) are housed inside the plenum (1). The manifold is applicable to feeding air to fuel injection internal combustion engines.

REFERENCES:
patent: 4539947 (1985-09-01), Sawada et al.
patent: 4543918 (1985-10-01), MA
patent: 4546733 (1985-10-01), Fukami et al.
patent: 5009200 (1991-04-01), Van Basshuysen et al.
patent: 5307767 (1994-05-01), Schutz
Research Disclosure Jul. 1986--n.degree. 267--pp. 428-430.
Emsworth (GB) "Engine Intake Turning".
Derwent Pulications Ltd.--London (GB)--Week 8811 Mar. 1988 "Super-charging system for IC engines--uses a helmholtz resonator, turned to the rpm, to increase the air supplied" SU 1328-566.A (Barsukov).

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