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US 12,215,656 B2Granted
Evaporative emissions control for a vehicle
AssigneePolaris Industries Inc.
InventorsLindsay S B Edwards, Jonathon P. Graus, Nick Levin
Life of this patent
Estimating the term…
Abstract
A fuel system comprising a fuel tank, a mixing volume configured to mix fuel vapor and air, the mixing volume comprising an outlet configured to be fluidly coupled to an engine, and a fuel vapor line configured to fluidly couple the fuel tank to the mixing volume.
Claims21
A vehicle comprising:
- a frame;
- a plurality of ground engaging members supporting the frame;
- a powertrain assembly operably coupled to the ground engaging members, the powertrain assembly comprising:
- an engine having a first cylinder and a second cylinder;
- and
- at least one throttle body fluidly coupled to the first cylinder and the second cylinder;
- an intake assembly coupled to the engine, the intake assembly comprising a first intake port and a second intake port;
- an exhaust assembly coupled to the engine;
- and
- a fuel system fluidly coupled to the engine, the fuel system including;
- a first throttle body fluidly coupled to the first intake port,
- a second throttle body fluidly coupled to the second intake port,
- a mixing volume fluidly coupled to each of the first throttle body and the second throttle body,
- a fuel tank, and the mixing volume and the fuel tank each fluidly coupled to each of the first throttle body and the second throttle body,
- an evaporative canister fluidly coupled intermediate the fuel tank and the mixing volume
- a first check valve operably coupled to the first cylinder and positioned intermediate the mixing volume and the first throttle body,
- a second check valve operably coupled to the second cylinder and positioned intermediate the mixing volume and the second throttle body, and
- a fuel vapor line fluidly coupling the fuel tank to the first check valve and the second check valve.
15 more elements
A vehicle comprising:
- a frame;
- a plurality of ground engaging members supporting the frame;
- an operator area including at least one seat supported by the frame;
- a powertrain assembly operably coupled to the ground engaging members, the powertrain assembly comprising an engine positioned generally rearward of the at least one seat, and an intake assembly coupled to the engine, the intake assembly comprising a first intake port and a second intake port;
- and
- a fuel system fluidly coupled to the engine, the fuel system including:
- a fuel tank positioned below the at least one seat and fluidly coupled to the intake assembly through a fuel delivery line,
- a mixing volume fluidly coupled to the engine,
- a fuel vapor line fluidly coupling the fuel tank to the mixing volume,
- an evaporation canister positioned fluidly along the fuel vapor line,
- a first check valve positioned fluidly intermediate the evaporation canister and the first intake port, and
- a second check valve positioned fluidly intermediate the evaporation canister and the second intake port,
- wherein mixing volume, the first check valve, and the second check valve are positioned rearward of the at least one seat.
10 more elements
Dependencies are inferred from the claim text.