Device for improving mixture distribution in an intake tube of a

Details Device for improving mixture distribution in an intake tube of a Device for improving mixture distribution in an intake tube of a

1988-12-16

1990-04-24

Cross, E. Rollins

Internal-combustion engines

Charge forming device

Charge-mixing device in intake

123549, 481892, F02M 2900

Patent

active

049191055

ABSTRACT:
A device for improving a fuel-air mixture distribution in multi-cylinder internal combustion engines, in which a mixture forming device (carburetor, central injection unit) must supply more than one cylinder. By means of the device a quantitatively and qualitatively uniform distribution of the air-fuel mixture to the various cylinders is effectively improved. This more-uniform distribution of the mixture is obtained by combining a plurality of nail-like protrusions and a guide wall downstream of the fuel-air mixture device at which an effective transfer of heat produced by a heating element takes place, with which the flow condition are varied prior to the division of the intake tube into intake line arms. It is particularly effective to dispose the device at the "hot spot" of downdraft intake tubes in multi-cylinder engines.

REFERENCES:
patent: 3625190 (1971-12-01), Boissevain
patent: 4047511 (1977-09-01), Takagi
patent: 4181111 (1980-01-01), Sanada et al.
patent: 4246880 (1981-01-01), Henke et al.
patent: 4387291 (1983-06-01), Keppel
patent: 4646703 (1987-03-01), Bradford et al.
patent: 4834053 (1989-05-01), Van Der Ploey et al.
Handbuch Energie, Herausgegeben von Th. Bohn 1983, Band 2 Verdrangermaschinen, Teil II Hubkolbenmotoren, pp. 170-173.
Fortschrittberichte VD1, Reihe 12, Nr. 62, Georg Pachta-Reyhofen Wandfilmbildung und Gemischverteilung . . . , pp. 62-64, 187-190.

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