Pressurized oil system powered by two-stroke engine
AssigneeArctic Cat Inc.
InventorsAlexander Konrad Fuhrman, Ryan Douglas Hayes, Andrew Jon Ellsworth, Cord Miller Christensen, David Mark Sabo, Derek Robert Kvenvold
Life of this patent
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Abstract
A two-stroke engine comprises a first oiling system and a second oiling system. The first oiling system includes a low-pressure pump that distributes oil from a first oil tank to the two-stroke engine. The second oiling system includes a pump mechanically coupled to a crankshaft of the two-stroke engine, wherein the pump distributes oil from a second oil tank to an accessory at a pressure greater than the first oil pressure, wherein oil distributed to the accessory is returned to the second oil tank.
Claims20
A two-stroke engine comprising:
- a first oiling system that distributes oil from a first oil tank to the two-stroke engine at a first oil pressure;
- a first accessory;
- and
- a second oiling system that includes a pump mechanically coupled to a crankshaft of the two-stroke engine to distribute oil from a second oil tank to the first accessory at a second oil pressure greater than the first oil pressure, wherein oil distributed to the first accessory is returned to the second oil tank, wherein the second oiling system is a closed loop oiling system and is not in fluid communication with the first oiling system.
A two-stroke engine comprising:
- a first oiling system that distributes oil from a first oil tank to the two-stroke engine at a first oil pressure;
- a first accessory;
- and
- a second oiling system that includes a pump mechanically coupled to a crankshaft of the two-stroke engine to distribute oil from a second oil tank to the first accessory at a second oil pressure greater than the first oil pressure, wherein oil distributed to the first accessory is returned to the second oil tank, wherein the first oiling system is a total loss oil distribution system.
A snow vehicle comprising:
- an endless track;
- a frame;
- a transmission;
- a two-stroke engine mechanically coupled to drive the endless track via the transmission,
- wherein the two-stroke engine comprises:
- a two-stroke engine oiling system that distributes oil from a first oil tank to the two-stroke engine at a first oil pressure;
- an accessory;
- and
- a pressurized oiling system that includes a pump mechanically coupled to a crankshaft of the two-stroke engine to distribute oil from a second oil tank to the accessory at a second oil pressure, wherein oil distributed to the accessory is returned to the second oil tank, wherein the pressurized oiling system is a closed loop system and is not in fluid communication with the two-stroke oiling system.
A snowmobile comprising:
- an endless track;
- a frame;
- a transmission;
- a two-stroke engine mechanically coupled to drive the endless track via the transmission,
- wherein the two-stroke engine comprises:
- an open-loop oiling system that distributes oil from a first oil tank to the two-stroke engine at a first oil pressure;
- an accessory;
- and
- a closed loop oiling system that includes a pump mechanically coupled to a crankshaft of the two-stroke engine to distribute oil from a second oil tank to the accessory at a second oil pressure, wherein oil distributed to the accessory is returned to the second oil tank.
Dependencies are inferred from the claim text.