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:
Jun. 07, 1983
Filed:
May. 13, 1981
Motorenfabrik Hatz GmbH & Co. KG, Ruhstorf, DE;
Abstract
A single cylinder internal combustion engine has a piston which drives a crankshaft and flywheel through a connecting rod and has a counterweight arrangement which balances forces produced by the moving engine elements. The counterweight arrangement includes a weight on the crankshaft and two weights on the flywheel which fully balance the forces produced by rotating motion of the engine parts and partially balance the forces produced by reciprocal motion of the engine parts. Two balance shafts are provided which are parallel to and driven synchronously with the crankshaft. The balance shafts have respective first weights thereon which complete the balance of forces produced by the reciprocating motion of engine parts and have respective second weights thereon which balance the moment of the first weights with respect to the axis of the cylinder.