US 11,702,965 B2
Pressurized oil system powered by two-stroke engine
Alexander Konrad Fuhrman, Thief River Falls, MN (US); Ryan Douglas Hayes, Warren, MN (US); Andrew Jon Ellsworth, Thief River Falls, MN (US); Cord Miller Christensen, Goodridge, MN (US); David Mark Sabo, Thief River Falls, MN (US); and Derek Robert Kvenvold, Thief River Falls, MN (US)
Assigned to ARCTIC CAT INC., Thief River Falls, MN (US)
Filed by Arctic Cat Inc., Thief River Falls, MN (US)
Filed on Feb. 11, 2022, as Appl. No. 17/669,689.
Application 17/669,689 is a continuation of application No. 16/103,718, filed on Aug. 14, 2018, granted, now 11,255,231.
Claims priority of provisional application 62/545,824, filed on Aug. 15, 2017.
Prior Publication US 2022/0162969 A1, May 26, 2022
Int. Cl. F01M 1/02 (2006.01); F01M 11/00 (2006.01); B62M 27/02 (2006.01); F01P 3/20 (2006.01); F01P 1/02 (2006.01); F02B 75/02 (2006.01); F01P 11/02 (2006.01); F01M 1/12 (2006.01)
CPC F01M 1/02 (2013.01) [B62M 27/02 (2013.01); F01M 11/0004 (2013.01); F01P 1/02 (2013.01); F01P 3/20 (2013.01); F02B 75/02 (2013.01); F01M 2001/023 (2013.01); F01M 2001/0238 (2013.01); F01M 2001/0269 (2013.01); F01M 2001/123 (2013.01); F01M 2011/0095 (2013.01); F01P 11/029 (2013.01); F01P 2001/023 (2013.01); F01P 2050/16 (2013.01); F01P 2060/02 (2013.01); F01P 2060/04 (2013.01); F01P 2060/12 (2013.01); F02B 2075/025 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A closed loop oiling system for a two-stroke engine, the closed loop oiling system comprising:
a pressure pump mechanically coupled to a crankshaft of the two-stroke engine via a shaft to distribute pressurized oil from a first oil reservoir;
an oil pressure regulator to regulate oil pressure;
a first accessory, wherein the first accessory utilizes the pressurized oil and the pressurized oil returns to a scavenge pump reservoir; and
a scavenge pump mechanically coupled to the crankshaft of the two-stroke engine via the shaft to return the oil from the scavenge pump reservoir to the first oil reservoir wherein the pressure pump and the scavenge pump are located directly adjacent to one another in a stacked configuration along an axis perpendicular to an axis defined through the crankshaft.