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. 18, 1992
Filed:
Feb. 20, 1991
Abstract
In an internal combustion engine with two or more inlet valves for each engine cylinder and roof-shaped boundary surfaces of the combustion chamber in the cylinder head--the main flow directions of the partial streams admitted into the combustion chamber by the inlet valves each forming an acute angle with the plane defined by the cylinder axes of a cylinder bank, i.e., the symmetry plane--, a strong torque of the charge in the combustion chamber is obtained at partial load without impairing the intake of charge at full load due to a deterioration of flow characteristics, by providing that the angle of at least one partial stream on one side of a plane going through the cylinder axis and being normal to the symmetry plane, be made larger by 10 to 40 degrees than the angle of at least one corresponding partial stream on the other side of this normal plane.