Abstract: A fuel drain structure in a fuel line comprising a bypass channel for connecting a fuel influx side and a fuel efflux side of a regulator, and a rotary valve for opening and closing the bypass channel, contributing to a prevention of fuel remaining in the fuel line from entering the engine when the engine stops running, and minimization of pollution occurring when the engine is re-started.

Abstract: Method and arrangement for distributing exhaust gases or gases which are ventilated from a crankcase or an evaporator of a combustion engine having a cylinder head (8) with intake valves and an intake manifold (3) with a flange (9) for mounting on the cylinder head. The intake manifold is provided with at least one collecting channel (11) which extends across each intake pipe of the intake manifold. The ventilation is made by sucking the gases from the collecting channel (11) directly into each intake pipe through a non-return valve (16, 17, 18, 19) arranged in connection with each intake pipe, which non-return valve is controlled by pressure pulses from the intake valves.

Abstract: A venting system for a fuel tank has an inlet opening that is communicated with a liquid separator arranged between the inlet opening and a vapor canister that preferably has an activated carbon filter. The liquid separator is preferably arranged in the interior of the fuel tank. In a preferred embodiment of the invention, a plurality of vent lines are arranged in the interior of the tank with the inlet openings of the vent lines spaced apart from each other so that there is always at least one inlet opening not exposed to liquid fuel. A line between the liquid separator and the activated carbon filter communicates with the upper region of the liquid separator. These measures ensure that the fuel vapors which are to be vented can pass undisturbed through the liquid separator while any liquid fuel which enters the separator collects in its lower region.

Abstract: A connecting structure for connecting a fuel filter and a fuel pump with an inlet. The connecting structure includes a joint bracket to be retained in the fuel tank, and a filter section formed with the fuel filter. The joint bracket includes a pump side connecting portion, and a filter side connecting portion and having a bottom portion with a first positioning hole. The filter section includes a bracket connecting portion abutting against the bottom portion and having a second positioning hole, and a communicating portion communicating with the fuel filter and connected to the fuel pump. A projection is formed at the fuel pump. When the fuel filter is attached to the fuel pump, the bracket connecting portion is attached to the bottom portion and the projection passes the first and second positioning holes and the inlet of the fuel pump is attached to the communicating portion.

Abstract: In a fuel supply apparatus (33), a lid (40) includes a first guide tube (48) provided extending toward inside of a fuel tank (31); a reservoir (34) is provided extending from a bottom thereof toward the side of the lid (40) and houses the fuel pump (35) as well as includes a second guide tube (41) that inscribed in the first guide tube (48) and fitted thereto in a slidable manner; and an elastic member (49) is provided that is inserted and fitted to an outer circumference of the foregoing second guide tube (41) as well as interposed between the reservoir (34) and the lid (40) to enable the reservoir (34) to travel telescopically with respect to the lid (40).

Abstract: A device for injecting fuel into the combustion chamber of an internal combustion engine, a high-pressure accumulator, a pressure booster, and a metering valve. The pressure booster has a working chamber and a control chamber that are separated from each other by an axially moving piston. A pressure change in the control chamber of the pressure booster causes a pressure change in a compression chamber of the pressure booster. The compression chamber communicates with a hydraulic chamber that acts on an injection valve element. The piston that acts on the compression chamber of the pressure booster is provided with control sections that can be used to relieve the pressure in the hydraulic chamber of the injection valve element.

Abstract: The volume of gas bubbles required in a fuel supply path in order to prevent the fuel pressure from rising again after an electromagnetic valve is closed is estimated. For example, the required volume of gas bubbles can be estimated according to the predicted rise of the fuel temperature in the fuel supply path after the engine is stopped. Since the volume of gas bubbles depends on the opening period of the electromagnetic valve, it is possible to determine the period during which the electromagnetic valve is to be open from the estimated required volume of gas bubbles. When the engine is stopped, the electromagnetic valve is operated based on this valve opening period.

Abstract: An injection module assembly includes a fuel rail defining a passageway through which a fuel can flow, and a plurality of fuel injectors for delivering the fuel in the passageway to a respective plurality of combustion chambers in an internal combustion engine. The fuel injectors are coupled to the fuel rail such that an interface between the fuel rail and each fuel injector is substantially sealed to substantially prevent leakage of both liquid fuel and hydrocarbon emissions from the interface. The injection module assembly further includes an electrical connector coupled to the fuel rail and to each of the injectors for providing electrical power to each injector, and an overmolding covering at least a portion of the fuel rail, at least a portion of the electrical connector, and at least a portion of each fuel injector.

Abstract: A canister for treating evaporated fuel includes a casing which is provided with a fuel vapor inlet, a purge port and a port communicating with atmosphere and in which an adsorbent is accommodated, an air passage disposed inside the casing so as to communicate with the atmosphere communication port, the air passage having a shape for flowing the sucked air in a zigzag manner in the casing, and a filter element arranged between the air passage and the adsorbent disposed inside the casing.

Abstract: In a fuel container (1) for a motor vehicle having a plurality of chambers (2, 4), a suction jet pump (18, 19) with a filling level sensor (11, 12) is arranged in each of the individual chambers (2, 4). A valve (24, 25) is arranged in a propellant line (20, 21) leading to the suction jet pump (18, 19). When a chamber (2, 4) is virtually empty, the supply of fuel to the suction jet pump (18, 19) is disabled and an unnecessary movement of the fuel is thus avoided.

Abstract: A method of controlling combustion in an homogenous charge compression ignition engine through indirect mechanisms. The method utilizes a predictive model so that combustion can be controlled over a wide range of operating conditions while maintaining optimum operation with respect to efficiency and emissions. The methods include an adaptive aspect, which allows the predictive model to be updated if deemed necessary. Furthermore, the methods include a model with a plurality of control modes. A control mode can be chosen to optimize the engine for one of a plurality of output characteristics, including response time, efficiency, or emissions characteristics.

Abstract: A fuel injection pump, comprising three sub-mechanism parts; a lower mechanism part (A), a head mechanism part (B), and a governor mechanism part (C), wherein, when the governor mechanism part (C) is assembled into the combination of the lower mechanism part (A) and head mechanism part (B) after the lower mechanism part (A) and head mechanism part (B) are assembled with each other, a governor link (27) installed extendedly from the governor mechanism part (C) is inserted into both mechanism parts (A, B) and, when a hook groove (27a) at the tip of the governor link (27) is engaged with a lock pin (21a) in a control slider (21) for the rotation of a plunger (7) disposed inside the lower mechanism part (A) and head mechanism part (B), first, with a cut surface (33b) of a lift pin (33) facing upward, the governor link (27) is put on the cut surface (33b) so as to position the hook groove (27a) under the lock pin (21a), and then the lift pin (33) is rotated to face the cut surface (33b) downward, and the governor

Abstract: A fuel delivery system 10 includes a reservoir 12 in a fuel tank 14; a fuel pump 16 in the reservoir for sending fuel at an engine; a jet pump 18 including a venturi tube 22 adjacent to a nozzle 24 to draw fuel from the tank into the reservoir; a cup 25 coupled with an end of the venturi tube for containing an amount of fuel; and a jet valve 20 permitting fuel drawn by the jet pump to enter the reservoir from the fuel tank and, preventing fuel that enters the reservoir from returning to the fuel tank. The cup traps fuel inside the jet pump so that fuel accumulates in the venturi tube and in the cup to a level above the nozzle thereby permitting the jet pump to draw fuel from the tank into the reservoir.

Abstract: A fuel pressure detector and a pressure accumulator are disposed in a fuel distribution line, an engine control apparatus controlling activation of a fuel pump based on output from the fuel pressure detector. The fuel pump is activated at maximum capacity to fill the fuel distribution line with fuel at a controlled pressure controlled by a fuel pressure regulator, then stopped. In this state, fuel accumulated under pressure in the pressure accumulator replenishes the fuel distribution line until fuel pressure inside the fuel distribution line drops to a predetermined value due to fuel injection by fuel injection valves.

Abstract: An auxiliary fuel dispensing system includes an auxiliary fuel pump disposed in a vehicle fuel tank. An auxiliary dispensing tube is connected at one end to the auxiliary fuel pump and at another end to an auxiliary dispensing location on the vehicle. One end of a fuel delivery hose is releasably connected to the end of the tube at the auxiliary dispensing location. Another end of the hose has a dispensing nozzle attached thereto. A means for selectively activating the pump is operable to pump fuel from the fuel tank, through the tube and the hose, and out the nozzle.

Abstract: A fuel injection system includes a pressure chamber having a displacable piston which can be subjected to pressure via a low-pressure-side pressure booster chamber for compressing the fuel in a high-pressure-side pressure booster chamber to be delivered to an injector. The stroke of the piston is controllable essentially by the pressure in a differential chamber of the pressure chamber and is used to vary the fuel pressure delivered to the injector. Provision is made for enlarging the cross section of the outlet cross section out of the differential chamber of the pressure chamber are provided. The fuel pressure during the injection can be varied. A pressure increase can be simply achieved.

Abstract: An evaporated fuel processing device, in particular for an internal combustion engine of an automotive vehicle, comprises a tank port (14) and an atmospheric port (26); a first adsorbent chamber (16) between the tank port (14) and the atmospheric port (26), the first adsorbent chamber (16) being filled with an adsorbent material (18); and a volume compensator (24) for compacting the adsorbent material (18) in the first adsorbent chamber (16). The volume compensator (24) comprises a base (34); a compacting plate (30); and a spring (32) arranged between the base (34) and the compacting plate (30). The volume compensator (24) further comprises resilient connecting means (36) connecting the compacting plate (30) to the base (34), the resilient connecting means (36) being formed in one piece with the compacting plate (30) and the base (34) and being arranged such that the spring (32) can be inserted between the base (34) and the compacting plate (30).

Abstract: A fuel injection device includes a housing with an injection end and a recess extending in the housing. An axially movable valve element disposed in the recess cooperates with a valve seat, which axially defines a control chamber. A sleeve part radially defines the control chamber. A device presses the sleeve part against a first housing portion and the valve element in the direction of the injection end, and includes separate prestressing devices acting one upon the valve element and the other upon the sleeve part.

Abstract: A fuel injection system for internal combustion engines, having a high-pressure accumulation chamber, which contains high-pressure fuel, and at least one fuel injection valve, which is connected to the high-pressure accumulation chamber. The fuel injection valve can inject the highly pressurized fuel through injection openings into a combustion chamber of the engine. The fuel injection valve has a control chamber, which is defined by a longitudinally mobile piston and is operationally connected to the fuel injection valve so that the injection cross section of the fuel injection valve is controlled as a function of the hydraulic pressure in the control chamber. A low-pressure accumulation chamber is provided, which can be connected to the control chamber, in which a predetermined fuel pressure is maintained in the low-pressure accumulation chamber that is lower than the pressure in the high-pressure accumulation chamber.

Abstract: A device and a method for controlling an internal combustion engine, for example, for regulating the speed of the internal combustion engine, are described. At least one first governor, specifies a first manipulated variable based on a comparison between a first setpoint value and an actual value. At least one second governor specifies a second manipulated variable based on a comparison between a second setpoint value and the actual value. The first manipulated variable may be limited to a first manipulating range and the second manipulated variable may be limited to a second manipulating range.