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:
Mar. 26, 2002
Filed:
May. 25, 2000
Stefan Strömberg, Mölndal, SE;
Jonny Nisbet, Göteborg, SE;
Magnus Gustavsson, Hindås, SE;
Volvo Car Corporation, , SE;
Abstract
A combustion system for engines having at least one cylinder ( ). The system may e.g. consist of an exhaust duct, an intake duct ( ), a cylinder chamber ( ), a fuel injector for injecting fuel into the cylinder chamber ( ), a piston ( ) performing a reciprocating motion in the cylinder chamber ( ), and a valve ( ) for intake and one for exhaust. The intake duct ( ) is connected to the cylinder chamber ( ) and said intake valve ( ) is operative to open and close, respectively, the connection between the intake duct ( ) and the cylinder chamber ( ). The crown ( ) of the piston ( ) is provided with a cavity ( ), shaped so as to enhance the generation of tumbling inside the cylinder chamber ( ) during the intake stroke and to contribute to the breakdown during the compression stroke inside the cylinder chamber ( ). The intake duct ( ) has an intermittent curve coinciding with the direction of the valve ( ), where a longitudinal axis ( ) of the valve ( ) is angled towards the top ( ) of the cylinder chamber ( ), for generating the tumbling effect inside the cylinder chamber ( ).