Abstract: The invention relates to a motor vehicle, with a fuel tank which has tank ventilation, the tank ventilation for adsorption of fuel vapors having an activated charcoal filter through which a flushing air flow can flow, and with a vehicle unit which has a vacuum pump, in particular a brake booster. It is provided that the delivery side of the vacuum pump produces compressed air for driving the flushing air flow and/or that the compressed air forms the flushing air flow.

Abstract: An anti-flow interruption system is configured to provide a supply of fuel in the event of a fuel flow interruption from a fuel tank. The anti-flow interruption system includes a reservoir, a reservoir conduit, and a vapor bleed system. The reservoir conduit has an end disposed at the bottom of the reservoir and another connected to a fuel pump. The vapor bleed system includes a vapor bleed conduit and a vapor bleed restrictor. One end of the vapor bleed conduit is attached to the top of the reservoir and the other end is connected to the fuel pump. The vapor bleed restrictor is disposed in the vapor bleed conduit between the fuel pump and the reservoir. If fuel flow is interrupted and results in vapor being present in the reservoir, liquid fuel remaining in the reservoir continues to be supplied to the fuel pump while the vapor bleed system removes the vapor.

Abstract: A propulsion apparatus for synchronizing the revolution speeds of a plurality of engines, each engine having a screw propeller shaft. A single regulator lever synchronously adjusts a revolution speed of the propeller shafts of the engines. When an output rpm of one of the engines has dropped, a control means lowers the revolution speed of the propeller shafts of the remaining engines to a revolution speed which is synchronized to the revolution speed of the propeller shaft of the engine whose rpm has dropped. Synchronization of revolution speeds of the remaining engines with the engine having reduced output rpm is terminated if the output rpm of that engine falls below a predetermined threshold.

Abstract: A fuel injection apparatus includes an accumulator, an injector, a fuel supplier supplying fuel to the accumulator, and a controller controlling a fuel supply rate of the fuel supplier through manipulation of a manipulated variable. The controller is configured to set a target fuel supply rate, determine a base target value of the manipulated variable as a first function of the target fuel supply rate, determine a correction value as a second function of the target fuel supply rate, correct the base target value of the manipulated variable using the correction value to obtain a final target value of the manipulated variable, and manipulate the manipulated variable to have the final target value, thereby bringing the fuel supply rate of the fuel supplier into agreement with the target fuel supply rate. The first and second functions are predefined prior to the installation of the fuel injection apparatus to an engine.

Abstract: A system and method is provided for automatically priming a fuel system by bleeding/purging air or vapor therefrom. The system includes a bleed valve configured to automatically move between three positions in response to the pressure of the fuel in the system. When fuel pressure is in a first pressure range, the bleed valve automatically moves to a first-closed position for preventing fuel from draining to the fuel tank and thereby drawing air into the fuel system. When the fuel pressure moves to a second, higher pressure range, the bleed valve automatically moves to an open position for bleeding air out of the fuel system and into the tank, thereby priming the fuel system. When the fuel pressure moves to a third, still higher pressure range, the bleed valve automatically moves to a second-closed position so as to not interfere with the regulation of the pressure regulating valve.

Abstract: The invention provides an intake-air cooling device for an internal combustion engine that can be installed compactly. The invention provides an intake-air cooling device for a gasoline engine equipped with an intercooler that cool intake air with outside air and an evaporator that cools intake air with refrigerant circulating in a bypass refrigeration circuit, disposed in this sequence in an intake-air channel from a supercharger to the gasoline engine. The intercooler is disposed in an outside-air duct through which outside air passes, the evaporator is disposed inside a case through which the intake air passes, and a bottom plate of the case forms part of the outside-air duct.

Abstract: A liquid separator that can be used in a vehicle fuel system can have, among other components, an inlet portion, a deflector surface, and an outlet portion. The inlet portion can receive fluid from a fluid tube that communicates with a fuel tank. The deflector surface may cause a change-in-direction that separates liquid and fuel vapor from the fluid. The outlet portion can carry separated fuel vapor to a vapor tube that communicates with a canister. A space adjacent the inlet portion can be defined by a fuel system component such as partly by a fill tube or by a vessel.

Abstract: An automatic residual fuel vent device for a carburetor, the device including a fuel supply passage (15) connecting a fuel tank (TF) and a float chamber (10), a negative pressure passage (17) connecting an intake passage (8) and a negative pressure operating chamber (53) of a diaphragm pump (PD), a fuel vent passage (16) connecting the float chamber (10) and the fuel tank (TF), a single changeover cock (CO) provided so as to straddle the fuel supply passage (15) and the negative pressure passage (17), a negative pressure surge tank (TS) provided in the negative pressure passage (17), and the diaphragm pump (PD), which is connected to the fuel vent passage (16) and is operated by negative pressure of the negative pressure surge tank (TS), residual fuel of the float chamber (10) being returned to the fuel tank (TF) by the diaphragm pump (PD) operated by negative pressure from the negative pressure surge tank (TS) in accordance with the changing over of the changeover cock (CO).

Abstract: A fuel injection system operates under a predetermined substantially constant pump speed and creates multi-pressure levels by diverting the fuel flow. Fuel pressure can be switched from one steady pressure level to another level on-demand instantly. This superimposes and overlaps typical fuel injection events in the linear operating ranges under different pressure levels, significantly increasing the fuel injection dynamic range. The dynamic range is further increased when another predetermined constant pump speed is assigned. Thus, the system saves fuel and reduces exhaust emission in city driving when gas pedal is released including idle. The same system can instantly deliver additional fuel on-demand for extra power beyond engine rating producing a sport-car-like performance.

Abstract: A radial piston pump for supplying fuel at high-pressure to an internal combustion engine has a compression chamber arranged in a displacement housing, a reciprocating piston arranged in a cylinder chamber, a suction valve connected to a fuel supply line and has a spring-loaded closure body, an intermediate piece, a threaded pin and a pressure valve which is connected to a fuel outlet line. The closing body of the suction valve is embodied as a valve end pad with the spring exerting a force on the front end thereof. The valve end pad has a closure collar and at least two channels that are distributed around the periphery and which adjoin the closure collar and a base plate. A stop plate comprising an additional base plate borders the closure collar of the valve end pad as an intermediate piece to which the threaded pin is connected.

Abstract: A method of controlling an internal combustion engine having a fuel vapor purging system and a fuel delivery system including a fuel pump and a fuel pressure sensor for detecting the fuel pressure provided by the fuel pump is disclosed. In one example, the method includes, during a degraded condition of the fuel pressure sensor, adjusting the fuel pump output in response to an operating condition, adjusting at least one of a condition of the fuel vapor purging system and adaptive learning of a characteristic of the fuel delivery system; and further adjusting the fuel pump output in response to an output of an exhaust gas sensor while also adjusting an amount of fuel injected into a cylinder of the engine in response to said output of the exhaust gas sensor.

Abstract: The fuel injection device according to the present invention is distinguished by a particularly effective sound-decoupling construction. The fuel injection device has at least one fuel injection valve, a receptacle bore for the fuel injection valve in a cylinder head, and a fuel distributor line having a fitting in which the fuel injection valve is placed in partially overlapping fashion. A connecting element is situated in the receptacle bore in such a way that the fuel injection valve is held in the connecting element in such a way that the fuel injection valve and the connecting element are held so that they do not contact any surfaces or walls of the receptacle bore of the cylinder head that do not run axially parallel to the fuel injection valve. The connecting element is attached immediately on the fitting of the fuel distributor line. The fuel injection valve is particularly well-suited for use in fuel injection systems of mixture-compressing externally ignited internal combustion engines.

Abstract: A fuel injection metering valve has a first fuel outlet for supplying fuel to a first accumulator volume, a second fuel outlet for supplying fuel to a second accumulator volume, valving for controlling fuel flow to the first and second fuel outlets, a first flow path for exposing the valving to fuel pressure representative of fuel pressure in the first accumulator volume and a second flow path for exposing the valving to fuel pressure representative of fuel pressure in the second accumulator volume. The valving is responsive to the representative fuel pressures to control the fuel supply from the second fuel outlet to the second accumulator volume as a function of the fuel pressure in the first accumulator volume. The fuel injection metering valve can be used in a dual-fuel fuel injection system to control the flow of one fuel such that it follows the controlled pressure of a different fuel, so that it is not necessary to provide duplication control components in the fuel injection system.

Abstract: The objective of the present invention is to dampen operating sounds of an electromagnetic drive mechanism used for a variable displacement to reduce an individual difference depending on apparatus due to the control mechanism in a high-pressure fuel supply pump change over time or installation tolerance. To achieve the above objective, the present invention is configured such that before the electromagnetic drive mechanism supplies a drive force to a plunger which is electromagnetically driven by the electromagnetic drive mechanism, another displacement force situates the plunger in a specific position. When compared to an occasion where the plunger is displaced all strokes by a magnetic biasing force, the above configuration is able to reduce the force of impact on a member (for example, valve body) mounted to the plunger and a restricting member, thereby damping the collision noise.

Abstract: A by-pass fuel system in which the plumbing of the fuel pump module is configured to ensure by-pass strained (and filtered) fuel remains separate from the reservoir fuel after by-pass such that it is not re-strained before re-entry to the fuel pump. The anti-clogging fuel pump module is plumbed such that the by-pass strained fuel is directed to the fuel pump separately with respect to the reservoir fuel, wherein it never mixes with reservoir fuel except after the reservoir fuel has passed through the strainer. Thus, the by-pass strained fuel only mixes with strained fuel from the strainer before its entry to the fuel pump. Accordingly, only reservoir fuel in the fuel pump module is passed through the strainer, whereby the clogging rate of the strainer is minimized.

Abstract: A fuel feed apparatus includes a sub-tank that is received in the fuel tank and a fuel pump that is received in the sub-tank and pumps fuel in the sub-tank toward the outside of the fuel tank. The sub-tank has a bottom wall that has a first passageway extending in the axial direction of the sub-tank, to which a suction jet pump unit to suction fuel in the fuel tank into the sub-tank can be selectively mounted.

Abstract: A system includes a cylinder selection module and a valve deactivation module. The cylinder selection module selects cylinders of an engine for active fuel management. The valve deactivation module deactivates intake valves of selected cylinders of the engine before deactivating exhaust valves of the selected cylinders when an engine speed of the engine is less than or equal to a predetermined speed.

Abstract: A fuel supply system for a general purpose internal combustion engine is equipped with a sub-fuel tank that retains gasoline fuel supplied from a main fuel tank and houses the high-pressure pump in its interior. In other words, the pump is immersed in the gasoline fuel retained in the tank, so that if an air pocket should occur in the fuel supply pipe between the main fuel tank and pump, the air will be discharged from the sub-fuel tank to the exterior through a fuel return pipe etc., thereby ensuring that the pump does not suck in air. Since fuel injectors can therefore inject gasoline fuel immediately, starting performance is enhanced.

Abstract: A fuel module for a vehicle has a module housing in fluid communication with a fuel tank of the vehicle and supporting a fuel pump. A pressure regulator is in the module housing and the regulator receives fuel from the pump. An orifice is disposed in a fluid path between the pump and the intake of the regulator.

Abstract: A radial piston pump (1) for supplying fuel at high-pressure to an internal combustion engine has a displacement housing (3) equipped with a compression chamber (4), a reciprocating piston which is arranged in a cylinder chamber (5) of a cylinder (30), a suction valve (10) which is connected to a fuel supply line (8) and a pressure valve (12) which is connected to a fuel outlet line (14). The suction valve (10) and the pressure valve (12) have, respectively, a closing head (16, 16?), a valve seat (18, 18?), a cylinder section (20, 20?) and springs (22, 22?). The suction valve (10) and the pressure valve (12) are identical components and the pressure valve (12) is incorporated into the radial piston pump (1) in the direction of flow counter to the suction valve (10).