초록 ▼

A very compact and inexpensive fuel injection device for auto-ignited internal combustion engines can be mounted on existing internal combustion engines to replace conventional fuel injection devices. The fuel injection device has one or more high-pressure pumps (10) that feed fuel into a supply tan

A very compact and inexpensive fuel injection device for auto-ignited internal combustion engines can be mounted on existing internal combustion engines to replace conventional fuel injection devices. The fuel injection device has one or more high-pressure pumps (10) that feed fuel into a supply tank (11) from which the fuel may be supplied through proportioning valves (16) to injection valves (15, 15'). The pressure in supply tank (11) is maintained by an automatic control system for the high-pressure pumps (10), the outputs of which are controlled by a control rod (13) that adjusts a plunger (18) of the high-pressure pumps (10) provided with a slanting edge (17).

대표청구항 ▼

[ I claim:] [1.] A fuel injection device for an autoignition internal combustion engine including a crankcase having a row of cylinders, a piston in each of said cylinders, a crankshaft to which there is articulated connecting rods connected, respectively, to said pistons, and a cylinder head coveri

[ I claim:] [1.] A fuel injection device for an autoignition internal combustion engine including a crankcase having a row of cylinders, a piston in each of said cylinders, a crankshaft to which there is articulated connecting rods connected, respectively, to said pistons, and a cylinder head covering said cylinders, said fuel injection device comprising:an opening in said crankcase at one lateral side of said row of cylinders for receiving a fuel pump (10),a high-pressure fuel-conveying pump (10) mounted in said opening in said crankcase,an elongated injection pressure fuel supply reservoir (11) secured to said high-pressure fuel-conveying pump (10) to form a unitary structure, said fuel supply reservoir (11) extending parallel to said crankshaft along said one side of said row of cylinders;said high pressure fuel conveying pump (10) being connected in fuel delivery relation to said fuel supply reservoir (11) and operable to maintain fuel in said fuel supply reservoir (11) at a fuel injection pressure,a camshaft (4) driven by said crankshaft,a fuel injector (15) for each cylinder mounted in said cylinder head operable to inject fuel into the associated cylinder,individual fuel lines (14) of substantially equal length connecting said fuel supply reservoir (11) in fuel delivery relation to said fuel injectors (15) anda proportioning valve (16) interposed in each of said fuel lines (14), said proportioning valves (16) being operable to control timing and quantity of fuel delivery by said injectors (15),said high-pressure fuel conveying pump (10) having a high-pressure side at said one side of said row of cylinders and having a drive side drivingly engaged by said camshaft (14).