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.

Date of Patent:
Jul. 28, 2020

Filed:

Jan. 12, 2018
Applicant:

Briggs & Stratton Corporation, Wauwatosa, WI (US);

Inventors:

Adam J. Hellman, Bayside, WI (US);

John Schneiker, Muskego, WI (US);

Tim Kwiatkowski, Muskego, WI (US);

Casey Groh, Shorewood, WI (US);

Robert Price, Wauwatosa, WI (US);

Ryan Sullivan, West Bend, WI (US);

Gary Johnson, Hales Corners, WI (US);

Assignee:

Briggs & Stratton Corporation, Wauwatosa, WI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01M 1/10 (2006.01); F01M 11/03 (2006.01); A01D 69/00 (2006.01); F01M 1/12 (2006.01); F02F 7/00 (2006.01); F16N 19/00 (2006.01); F02B 75/00 (2006.01); F01M 11/00 (2006.01); F01M 11/12 (2006.01); F01M 11/04 (2006.01); A01D 101/00 (2006.01);
U.S. Cl.
CPC ...
F01M 1/10 (2013.01); A01D 69/00 (2013.01); F01M 1/12 (2013.01); F01M 11/00 (2013.01); F01M 11/0004 (2013.01); F01M 11/03 (2013.01); F01M 11/12 (2013.01); F02B 75/007 (2013.01); F02F 7/0039 (2013.01); F02F 7/0068 (2013.01); F16N 19/00 (2013.01); A01D 2101/00 (2013.01); F01M 2001/1007 (2013.01); F01M 2001/1071 (2013.01); F01M 2001/1078 (2013.01); F01M 2001/1092 (2013.01); F01M 2001/123 (2013.01); F01M 2001/126 (2013.01); F01M 2011/0029 (2013.01); F01M 2011/0083 (2013.01); F01M 2011/0095 (2013.01); F01M 2011/038 (2013.01); F01M 2011/0491 (2013.01);
Abstract

An engine assembly includes an air-cooled engine and an external oil reservoir. The engine includes a vertically-oriented crankshaft a crankcase cover having a front portion and a rear portion, wherein the front portion of the crankcase cover and the cylinder head are located forward of a vertical plane that includes the crankshaft axis, a return pump housing formed in the exterior of the crankcase cover, a return pump positioned in the return pump housing, and a return pump inlet formed through the crankcase cover, wherein the return pump inlet is located in the front portion of the crankcase cover and the return pump inlet is located closer to the camshaft than to the crankshaft. The external oil reservoir includes an oil tank and an oil filter assembly.


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