The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 1989
Filed:
Feb. 10, 1988
Autoipari Kutato es Fejleszto Vallalat, Budapest, HU;
Abstract
A reciprocating piston-type internal combustion engine includes an intake gas conduit assembly in which intake gas resonance oscillations are generated for increasing the charging efficiency of the cylinders. The intake gas conduit assembly has a feed resonance system including a feed resonator vessel connected with the intake ports of a group of cylinders whose suction strokes do not significantly overlap and a feed resonance pipe communicating with the feed resonator vessel. The intake gas conduit assembly further has an auxiliary resonance system including a closed auxiliary resonator vessel and an auxiliary resonance pipe opening into the auxiliary resonator vessel, an intermediate resonator vessel coupled with the auxiliary resonance pipe and the feed resonance pipe and an intake gas inlet pipe coupled with the intermediate resonator vessel. The feed resonance system and the auxiliary resonance system are tuned to one another by a dimensional selection such that at a predetermined first resonance rpm of the engine the intake gas oscillations generated in the feed resonance pipe and the auxiliary resonance pipe by intermittent suction strokes of the cylinders forming the group are in phase effecting an increase in the charging efficiency and the intermediate resonator vessel is dimensioned such that at a predetermined second resonance rpm of the engine in an operational rpm range the oscillations in the feed resonance pipe and the auxiliary resonance pipe are of opposite phase, effecting an increase in the charging efficiency.