Fuel recirculation methods, fuel supply circuits and fuel recirculation valves for selectively mixing hot return fuel from a diesel engine with fuel from a tank before providing it to back to the engine. In exemplary disclosed embodiments of fuel recirculation valves, the valves are configured to selectively mix the fuel in a controlled manner using a temperature sensitive actuator within the valve such that, when the temperature of the fuel reaches a certain point, the valve restricts flow pathways to reduce heated fuel being mixed with fuel from the fuel tank, and eventually closes to prevent any heated fuel from being mixed and overheating the fuel provided to a fuel filter, a fuel pump and the engine. Disclosed fuel circulation valves are separate from the fuel filter and are placed upstream of the filter.

An engine including a fuel tank, a carburetor, a speed control lever, and a transport valve. The carburetor includes a throttle valve movable between a first throttle position and a second throttle position. The speed control lever is coupled to the throttle valve and is movable between a first position corresponding to the first throttle position and a second position corresponding to the second throttle position. The transport valve is fluidly coupled between the fuel tank and the carburetor, and includes a valve element moveable between an open valve position allowing fuel flow between the fuel tank and the carburetor, and a closed valve position preventing fuel flow between the fuel tank and the carburetor. Movement of the speed control lever to the second position moves the valve element to the closed valve position to stop fluid flow between the fuel tank and the carburetor.

A work vehicle including a tank (31,131) formed so as to extend from a rear part of a vehicle body toward a center, wherein the tank includes: a first storage tank (32) located on the rear side of the vehicle body, and stores stored fluid (9); a second storage tank (34) located on a side close to the center in the front-rear direction of the vehicle body, and stores the fluid; a partition part (36) that separates the first storage tank and the second storage tank; a discharge member (49) that has a discharge opening (49a) extending and opened inside the second storage tank, and discharges, from the second storage tank, the fluid stored in the second storage tank; and a hollow tube member (60) that has a first end communicated with the first storage tank through the partition part so as to enable the stored fluid to flow, and a second end having a hollow tube opening (62) extending and opened toward the center of the vehicle body inside the second storage tank, wherein the hollow tube opening of the hollow tube member is located on the central side of the vehicle body with respect to the discharge opening of the discharge member.

Provided is a general purpose engine that has a small external appearance and can be placed in a stable posture even when inverted, and whereby labels attached to the upper surface thereof can be protected. The general purpose engine 1 comprises a shroud 4 covering an engine main body. The shroud 4 includes: a top cover 2 arranged in an upper section of the general purpose engine 1; and a bottom cover 3 arranged in a lower section of the general purpose engine 1. The top cover 2 has a pair of bridges 20, 20 formed so as to protrude from the upper surface of the top cover 2, constituting the apex of the top cover 2 and continually extending from the front surface of the top cover 2 to the rear surface thereof, across the upper surface.

A work vehicle including: a drive device that has an internal combustion engine for driving a vehicle body; a first tank for storing fuel to be supplied to the internal combustion engine; and a second tank for storing fuel to be supplied to the internal combustion engine; wherein the first tank is disposed in front of or behind the drive device, and the second tank is disposed below the drive device so as to be separated from the first tank by a predetermined distance.

A method of managing wheel slip in a vehicle. The vehicle has a frame, an internal combustion engine, front and rear wheels operatively connected to the engine, a throttle valve for controlling a supply of air to the engine, a steering assembly operatively connected to at least the front wheels for steering the vehicle, and an unassisted continuously variable transmission (CVT) operatively connecting the front wheels and the rear wheels to the engine. The method includes: determining a sensed deceleration of the vehicle; comparing the sensed deceleration of the vehicle to a threshold deceleration; and increasing a torque output of the engine from a current engine torque output value to an increased engine torque output value when the sensed deceleration of the vehicle is greater than the threshold deceleration. A method for managing wheel slip in accordance with a drive mode of the vehicle is also disclosed.

A vehicle includes an engine and a fuel system. The fuel system includes a fuel tank that stores liquefied petroleum (LP) fuel. The fuel tank includes a tank outlet port and a tank return port. The fuel distribution system supplies fuel from the fuel tank to the engine and returns unused fuel to the fuel tank. The fuel distribution system includes an engine supply line coupled to the tank outlet port, and a fuel rail disposed on the engine and coupled to the engine supply line. The fuel system includes a fuel discharge valve disposed on the fuel distribution system for removing fuel from the fuel distribution system.

A method for dewatering an operating substance, more particularly a fuel, preferably during the operation of a vehicle, more particularly a rail vehicle, includes conveying an operating substance from an operating substance tank. Water present on or in the fuel is first collected in a water container, and water is conveyed, in chronological order, from the water container back to the operating substance tank, then to an exhaust system and/or from the operating substance tank to the exhaust gas system. A dewatering device for an operating substance, more particularly a fuel for a vehicle, more particularly a rail vehicle, includes a water container, in which water present on or in the fuel is collected. The dewatering device has a dewatering conduit or line which runs from the water container to an operating-substance tank of the vehicle and/or to an exhaust-gas system of the vehicle.

A fuel supply structure for a saddled vehicle, includes: an upstream-side fuel supply system guiding fuel from a fuel tank to a fuel pump side; a downstream-side fuel supply system guiding the fuel from the pump to a fuel injection valve side; and an excess fuel return system returning excess fuel from the downstream-side fuel supply system to the tank side. A fuel hose joint is attached to the tank and includes: an insertion tube portion inserted into the tank and formed into a dual tube structure where an inner tube is covered by an outer tube; a first connection tube portion communicating with inside of the inner tube; and a second connection tube portion communicating with inside of the outer tube. A fuel suction hose is connected to one of the first and second connection tube portions, and a fuel return hose is connected to an other thereof.

A side part structure of an engine having cylinders lined up in a front-and-rear direction of a vehicle body, is provided. The structure includes auxiliary machinery disposed in a front part of one side wall part of the engine in a vehicle width direction, a fuel system component disposed in a rear part of the side wall part, an intercooler disposed between the auxiliary machinery and the fuel system component, and a first protector member disposed between the intercooler and the fuel system component. At least a front part of the first protector member is formed so as to be separated from the side wall part as it extends rearward. A front part of the intercooler is disposed rearward of the auxiliary machinery and the intercooler is disposed along the first protector member so as to be separated from the side wall part as it extends rearward.