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US 8,543,306 B2Granted
Vehicle having speed control unit
AssigneePolaris Industries Inc.
InventorsJeremy Utke, David Jubie, G. Jay McKoskey, Timothy A Skime
Life of this patent
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Abstract
A tractor is disclosed as a four-wheel drive vehicle with a movable seat back, with a seat height adjustment and with a varying load capability.
Claims14
A vehicle, comprising:
- a frame;
- ground engaging elements;
- an engine for motively driving one or more of the ground engaging elements having an air intake supplying air to an engine combustion chamber;
- and
- a speed control unit for controlling the engine speed and a top speed of the vehicle comprising:
- a guillotine air valve positioned intermediate the air intake and the engine, the guillotine air valve being connected to a diaphragm;
- and
- a controller assembly for opening and closing the air valve, the assembly including a speed sensing mechanism and a controlling unit for opening and closing the air valve, wherein the controlling unit raises the diaphragm and maintains the guillotine air valve in an open position when the vehicle is operating at a speed below an upper limit.
5 more elements
A vehicle, comprising:
- a frame;
- ground engaging elements;
- an engine for motively driving one or more of the ground engaging elements having an air intake supplying air to an engine combustion chamber;
- and
- a speed control unit for controlling the engine speed and a top speed of the vehicle comprising:
- a guillotine air valve connected to a diaphragm and positioned intermediate the air intake and the engine;
- a controller assembly for opening and closing the air valve, the assembly including a speed sensing mechanism and a controlling unit for opening and closing the guillotine air valve, wherein the controlling unit controls the diaphragm to a closed position to close the guillotine air valve and slow the vehicle when the vehicle operates at a speed approaching an upper limit.
4 more elements
Dependencies are inferred from the claim text.