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. 10, 1999
Filed:
Nov. 19, 1997
Charles R Miller, Metamora, IL (US);
John W Winkler, East Peoria, IL (US);
Willibald G Berlinger, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A two cycle engine comprises an engine casing that defines a hollow piston cavity, a first gas passageway and a second gas passageway. The hollow piston cavity is separated from the first gas passageway by a valve seat. A piston is positioned in the hollow piston cavity and is moveable between a top position in which the second gas passageway is blocked to the hollow piston cavity, and a bottom position in which the second gas passageway is open to the hollow piston cavity. A gas valve member is positioned adjacent the valve seat and is moveable between an open position and a closed position relative to the valve seat. The gas valve member defines a nozzle outlet that opens directly into the hollow piston cavity. A needle valve member is positioned in the gas valve member and is moveable between an inject position in which the nozzle outlet is open, and a blocked position in which the nozzle outlet is blocked.