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. 30, 1993
Filed:
May. 05, 1992
Benny Ballheimer, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
Engines are needed to perform a variety of functions in a variety of horsepowers. The subject method of obtaining a longer stroke on an existing engine makes it possible to increase the horsepower capabilities without replacing or modifying the cylinder block or cylinder head. The method includes replacing the existing crankshaft with a crankshaft having a larger throw 'T' to increase the stroke length of the engine. In order to compensate for the increased stroke length, a spacer is provided. In addition, the existing connecting rod with the outer swing path 'S' is replaced with a connecting rod having an outer swing path 'S'. In order to avoid interference with the block the existing connecting rod bolts are replaced with connecting rod bolts having reduced diameter shanks and angularly disposing the bolts in relation to a connecting rod axis. The compression ratio os the long stroke engine is maintained substantially equivalent to that of the existing engine by increasing the clearance volume at top dead center within the bore in relation to the increased combustion volume created by the crankshaft having a larger throw 'T'.