Abstract: The present invention provides a fuel supply system for injecting a liquefied vapour under high pressure into a combustion chamber of a combustion engine, comprising: (i) a first petrol fuel supply tank; (ii) a second liquefied vapour fuel supply tank; (iii) a petrol fuel high-pressure pump; (iv) a liquefied vapour high-pressure pump; (v) a fuel selector switch for operating the fuel supply system in a petrol feeding state or in a liquefied vapour feeding state; (vi) a high-pressure rail downstream of said high-pressure pumps, with multiple injectors for direct injection of fuel into the combustion chambers; and wherein said liquefied vapour high-pressure pump further comprises a piston for transmitting the pressure of petrol fuel in said petrol chambers to the liquefied vapour fuel in said liquefied vapour chambers.

Abstract: The invention relates to a fuel supply system (1) for injecting liquefied vapor under high pressure, such as liquid petroleum gas (LPG), into a combustion chamber (3-6) of an internal combustion engine (2). The fuel supply system (1) comprises a fuel supply for liquefied vapor connected to a high-pressure pump (11) via a duct. The high-pressure pump (11) has a high-pressure chamber (105) which is embodied thereby to increase the pressure of the liquefied vapor. A high-pressure discharge of the high-pressure pump (11) is connected to a high-pressure rail (7) which comprises one or several injectors for injecting liquefied vapor into a combustion chamber. According to the invention, the fuel supply system is provided with a discharge F unit (20) for purging fuel, in particular fuel vapor, between the high-pressure chamber and the combustion chamber.

Abstract: The invention relates to a storage bag for temporarily accommodating the liquefied petroleum gas, to a liquefied petroleum gas storage, to a fuel supply system, and to an assembly for buffering a liquefied petroleum gas (LPG) in a liquefied petroleum gas storage. The storage bag is arranged for temporarily accommodating the liquefied petroleum gas, having a fuel collection volume and a supply unit for allowing liquefied petroleum gas from the storage to enter into the fuel collection volume. The assembly can comprise a fuel pump having a pump housing and an inlet connected to the fuel collection volume. According to the invention a fuel pump and storage bag connection is arranged to allow feeding of the assembly the one after the other through an opening of the liquefied petroleum gas storage. According to the invention the storage bag comprises a jet pump.

Abstract: An assembly for use in a crankcase ventilation system of an internal combustion engine includes a shutter arrangement that is constructed and arranged for preventing that residual gases and/or vapors out of a crankcase flow into an air intake system during a period of time that starts at shut down of the engine and ends after it has been re-started. The assembly also includes an outlet that is constructed and arranged for removing at least a substantial part of the residual gases and/or vapors from the engine as long as it is shut down.

Abstract: A diesel engine for combusting a diesel-LPG mixture includes a fuel system for supplying diesel and LPG. The mixture is obtained by combining the fuel flow from a LPG tank and diesel tank. Increased pressure is applied in both fuel flows for mixing purposes. Immediately following the mixing a circulation system is present in which increase in pressure also takes place, wherein a part of the mixture is supplied to a high-pressure pump for injection to the diesel engine and a part is recirculated. In a method of supplying the diesel-LPG mixture, the part of the mixture that is supplied to the high-pressure pump is returned to a position upstream of the mixing point. The pressure in the fuel system is higher downstream of the mixing point. When the LPG supply is switched off the pressure can be gradually decreased through circulation.

Abstract: An assembly for use in a crankcase ventilation system of an internal combustion engine includes a shutter arrangement that is constructed and arranged for preventing that residual gases and/or vapors out of a crankcase flow into an air intake system during a period of time that starts at shut down of the engine and ends after it has been re-started. The assembly also includes an outlet that is constructed and arranged for removing at least a substantial part of the residual gases and/or vapors from the engine as long as it is shut down.

Abstract: A diesel engine for combusting a diesel-LPG mixture includes a fuel system for supplying diesel and LPG. The mixture is obtained by combining the fuel flow from a LPG tank and diesel tank. Increased pressure is applied in both fuel flows for mixing purposes. Immediately following the mixing a circulation system is present in which increase in pressure also takes place, wherein a part of the mixture is supplied to a high-pressure pump for injection to the diesel engine and a part is recirculated. In a method of supplying the diesel-LPG mixture, the part of the mixture that is supplied to the high-pressure pump is returned to a position upstream of the mixing point. The pressure in the fuel system is higher downstream of the mixing point. When the LPG supply is switched off the pressure can be gradually decreased through circulation.

Abstract: The invention relates to a fuel supply system (1) for injecting liquefied vapour under high pressure, such as liquid petroleum gas (LPG), into a combustion chamber (3-6) of an internal combustion engine (2). The fuel supply system (1) comprises a fuel supply for liquefied vapour connected to a high-pressure pump (11) via a duct. The high-pressure pump (11) has a high-pressure chamber (105) which is embodied thereby to increase the pressure of the liquefied vapour. A high-pressure discharge of the high-pressure pump (11) is connected to a high-pressure rail (7) which comprises one or several injectors for injecting liquefied vapour into a combustion chamber. According to the invention, the fuel supply system is provided with a discharge F unit (20) for purging fuel, in particular fuel vapour, between the high-pressure chamber and the combustion chamber.

Abstract: The invention relates to a coupling body (10) provided with a first supply conduit (100) for receiving a first fuel fluid and a first discharge conduit for discharging the first fuel fluid. The first supply conduit (100) in the coupling body (10) is connected to the first discharge conduit (100) in order to form a first fluid connection for the first fuel fluid from the first supply conduit (100) to the first discharge conduit (100). The coupling body (10) is provided with a receiving chamber (150,51,52). The first supply conduit (100) is connected to the receiving chamber (150,51,52). The first discharge conduit (100) is connected to the receiving chamber (100,51,52). In the receiving chamber (50,51,52), a coupling member (56,57) is arranged, wherein the coupling member (56,57) and the receiving chamber (50,51,52) cooperate in order to form the first fluid connection.

Abstract: An injection device for injecting liquid fuel, such as LPG, which evaporates when emerging from the injector. The device ensures that ice deposits do not form at the opening of the outlet pipe by providing an interior output pipe made of a thermally insulating material surrounded by an exterior sleeve of heat conducting material. The opening of the pipe is fitted substantially flush with the sleeve.

Abstract: The pressure vessel (1) forming the fuel tank has an opening (22) with a flange (3) to accept a flanged accessories plate (4) as a lid. A plate has a fuel outlet (12), a fuel return (13), a blow-off safety valve (15) and a filling line. A fuel pump (11) is suspended off the plate with electrical connections (16) to drive the pump. The pump is suspended from the plate by exchangeable spacer device (10). It ensures that the bottom of the pump is near the base of the fuel tank.

Abstract: Gas valve (1) to be arranged in an intake port (2) of a combustion engine. In order to be able to give the valve different flow characteristics in a simple manner, the valve (1) comprises two plates (8, 24) disposed parallel to one another, between which the valve body (9) is arranged with clearance, which valve body (9) can shut off a discharge opening (11). By varying the degree of clearance, the amount of gas passing through the valve (1) can be varied. This variation in the valve lift can be achieved by adapting the height of an adjusting ring (5).

Abstract: The fuel used, such as LPG, evaporates at raised temperature. It is proposed that when the internal combustion engine is not running a part of the fuel supply pipes should be heated, so that the liquid fuel therein evaporates. When injectors leak only vaporous liquid will then enter the combustion chamber.