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. 06, 2001
Filed:
Feb. 10, 1999
Applicant:
Inventor:
Jean Frederic Melchior, Paris, FR;
Assignee:
S.N.C. Melchior Technologie, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 1/28 ;
U.S. Cl.
CPC ...
F01L 1/28 ;
Abstract
A loop-scavenged two-stroke internal combustion engines with an intake valve (,) engaging a seat (,) for fresh air intake, and an exhaust valve (,) engaging a seat (,) for combustion gas exhaust, is disclosed. The valves are arranged in such a way that the fresh air intake scavenges a substantial part of the burnt gases. In at least one of the valves, the valve surface (,) located downstream from the valve face (,) and the surface (,) of the downstream extension of the seat (,) are configured in such a way that they form a substantially isentropic diffuser.