Internal-combustion engines – Charge forming device – Charge-mixing device in intake
Patent
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.
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Fortschrittberichte VD1, Reihe 12, Nr. 62, Georg Pachta-Reyhofen Wandfilmbildung und Gemischverteilung . . . , pp. 62-64, 187-190.
Cross E. Rollins
Greigg Edwin E.
Robert & Bosch GmbH
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