A vehicle which supplies a fuel from a fuel tank to an air-intake passage comprises a first injector which injects the fuel into the air-intake passage; a second injector which is disposed to be apart from the first injector in a flow direction of intake-air and injects the fuel into the air-intake passage; a fuel pump which discharges the fuel from the fuel tank; a first fuel tube, a first end of which is connected to the fuel pump; a second fuel tube, a first end of which is connected to the second injector; and a connector which is connected to a second end of the first fuel tube, a second end of the second fuel tube, and the first injector, and distributes the fuel from the first fuel tube, to the second fuel tube and the first injector, and the connector is firmly coupled to the first injector.

A carburetor for the combustion engine in a handheld work apparatus has a carburetor housing in which a carburetor drum is mounted rotatably about a pivot axis. The carburetor drum has a drum body which has at least one channel which runs transversely with respect to the pivot axis and forms an intake channel portion. A sensing unit for sensing at least one rotational position of the carburetor drum is provided. The sensing unit includes a control contour and a sensing device interacting with the control contour. The control contour is formed on the carburetor drum. A method for operating a combustion engine makes provision for the control device to control the supplied quantity of fuel depending on the rotational position, sensed by the sensing unit, of the carburetor drum.

A power tool has an internal combustion engine with an injection valve through which fuel is supplied to the internal combustion engine; a crankcase; and a crankshaft arranged in the crankcase so as to be rotatable about an axis of rotation. A fan wheel housing is provided and a fan wheel is arranged in the fan wheel housing and conveys cooling air to the internal combustion engine. In the fan wheel housing a connecting opening is formed. The injection valve is arranged in a cooling area, wherein cooling air is supplied by the fan wheel through the connecting opening to the cooling area.

A hand-guided power tool has a power tool housing and an internal combustion engine arranged in the power tool housing and configured to drive a tool member of the power tool. A fuel tank and at least one electric component are provided. A control device that is an electronic control unit is connected to the at least one electric component of the power tool and controls the at least one electric component. The power tool has a top face which, when parking the power tool in a usual parking position on a flat horizontal support surface, is facing upwardly. The electronic control unit is positioned laterally adjacent to the fuel tank device, when viewing the power tool in the usual parking position.

An internal combustion engine includes an engine block including a cylinder, a piston positioned within the cylinder, a crankshaft configured to be driven by the piston, a fuel supply system for supplying an air-fuel mixture to the cylinder, an ignition system, an electric starting system including a starter motor, and an ultracapacitor mounted on the engine, the ultracapacitor configured to power the starter motor to start the engine. A related garden tool is also disclosed.

An air cleaner assembly having an oblong cross section shape and is shaped to cooperate with non-circular air filters. An intake tunnel passes around a portion of an exterior of a filter housing body and overlies an air inlet into the filter housing body. The intake tunnel initiates rotational or cyclonic movement of air directed into the filter assembly. A cover cooperates with a longitudinal end of the filter housing assembly and allows access to the non-circular air filter. The air cleaner assembly is constructed to allow visual inspection of the interior of the air cleaner assembly. The air cleaner assembly includes a filter body support that defines an air duct that communicates filtered air toward an underlying power tool or internal combustion engine and that at least partially supports the air filter assembly relative to the underlying equipment.

A simple engine, comprises (1) a cylinder, and a spark plug in the cylinder; (2) a carburetor, fluidly connected to the cylinder; (3) a primary air intake path, fluidly connecting atmosphere to the carburetor; (4) a carburetor bypass air intake path, fluidly connecting air to the cylinder without passing through the carburetor; and (5) a valve, along the carburetor bypass air intake path, for controlling the flow of air through the carburetor bypass air intake path.

An internal combustion engine includes an engine block including a cylinder, a piston positioned within the cylinder, a crankshaft configured to be driven by the piston, a fuel supply system for supplying an air-fuel mixture to the cylinder, an ignition system, an electric starting system including a starter motor, and an ultracapacitor mounted on the engine, the ultracapacitor configured to power the starter motor to start the engine. A related garden tool is also disclosed.

To improve the effect of preventing contamination of an element in an air cleaner. An air cleaner includes a first inlet (60) through which air is fed to an intake system air passage and a second inlet (62) through which air is fed to an intake system air-fuel mixture passage. An extended passage (72) leads to the second inlet (62), for example. A passage forming member (70, 204) forming the extended passage (72) is shaped to surround a periphery of the first inlet (60). The passage forming member (70, 204) forms a blown-back fuel diffusion preventing region (74) leading to the first inlet (60).

An engine includes an air filter assembly having a filter element and a case. A base of the case includes multiple clips, multiple pins, and a catch. The clips are configured to engage a bottom wall of the filter element. A cover of the case includes multiple hinge wings, a hook, and a guide structure. Each of the hinge wings is coupled with a corresponding pin of the base to allow the cover to rotate about the pins. The hook is configured to fasten to the catch of the base for securing the case in a closed configuration. The guide is configured to facilitate placement of the hook and prevent lateral slipping of the hook from the catch of the base. The base and the cover define an interior volume of the air filter assembly sized to receive the filter element.