Abstract: A high pressure fuel pipe construction for an internal combustion engine, such as a direct injection engine. A conduit for the fuel is open at each end and a ball having a throughbore is slidably positioned over one end of the conduit. A reinforcing sleeve is positioned inside the end of the conduit so that the sleeve extends entirely through the ball. The sleeve, ball and the end of the conduit are then brazed together to attach the ball and conduit together. A double chamfer is provided at one end of the ball throughbore to facilitate inspection of the brazing quality. Additionally, a loop is formed in the conduit and a dampener is attached to the loop.

Abstract: A high pressure fuel pipe construction for an internal combustion engine, such as a direct injection engine. A conduit for the fuel is open at each end and a ball having a throughbore is slidably positioned over one end of the conduit. A reinforcing sleeve is positioned inside the end of the conduit so that the sleeve extends entirely through the ball. The sleeve, ball and the end of the conduit are then brazed together to attach the ball and conduit together. A double chamfer is provided at one end of the ball throughbore to facilitate inspection of the brazing quality. Additionally, a loop is formed in the conduit and a dampener is attached to the loop.

Abstract: A fuel system component for a direct injection internal combustion engine. The component includes a fuel rail and a plurality of direct injection fuel injectors which are rigidly attached to the rail. Each fuel injector has an elongated body as well as a harness assembly extending laterally outward from the elongated body. Each injector is attached to the fuel rail such that, when viewed along an axis of the fuel injector body, the fuel rail overlies at least a portion of the injector body and at least a portion of the harness assembly.

Abstract: A high pressure fuel pipe construction for an internal combustion engine, such as a direct injection engine. A conduit for the fuel is open at each end and a ball having a throughbore is slidably positioned over one end of the conduit. A reinforcing sleeve is positioned inside the end of the conduit so that the sleeve extends entirely through the ball. The sleeve, ball and the end of the conduit are then brazed together to attach the ball and conduit together. A double chamfer is provided at one end of the ball throughbore to facilitate inspection of the brazing quality. Additionally, a loop is formed in the conduit and a dampener is attached to the loop.

Abstract: A fuel system component for a direct injection internal combustion engine. The component includes a fuel rail and a plurality of direct injection fuel injectors which are rigidly attached to the rail. Each fuel injector has an elongated body as well as a harness assembly extending laterally outward from the elongated body. Each injector is attached to the fuel rail such that, when viewed along an axis of the fuel injector body, the fuel rail overlies at least a portion of the injector body and at least a portion of the harness assembly.

Abstract: A high pressure fuel pipe construction for an internal combustion engine, such as a direct injection engine. A conduit for the fuel is open at each end and a ball having a throughbore is slidably positioned over one end of the conduit. A reinforcing sleeve is positioned inside the end of the conduit so that the sleeve extends entirely through the ball. The sleeve, ball and the end of the conduit are then brazed together to attach the ball and conduit together. A double chamfer is provided at one end of the ball throughbore to facilitate inspection of the brazing quality. Additionally, a loop is formed in the conduit and a dampener is attached to the loop.

Abstract: An apparatus for attenuating fuel pump noise in a direct injection internal combustion engine. In one proposal, the direct injection fuel nozzle is suspended from a fuel rail in a fashion that avoids direct metal-to-metal contact between the injector and the engine block. The direct injection nozzle may also be connected to the fuel rail by a pair of spaced-apart seals which equalize the longitudinal pressure on the nozzle during operation. Enlarged diameter fuel reservoirs and/or a restricted orifice may be provided fluidly in series between the fuel pump and the direct injection nozzle in order to attenuate noise resulting from fuel pump pulsation. A clip holder and clip plate mount the fuel injector to the injector cup.

Abstract: An apparatus for attenuating fuel pump noise in a direct injection internal combustion engine. In one proposal, the direct injection fuel nozzle is suspended from a fuel rail in a fashion that avoids direct metal-to-metal contact between the injector and the engine block. The direct injection nozzle may also be connected to the fuel rail by a pair of spaced-apart seals which equalize the longitudinal pressure on the nozzle during operation. Enlarged diameter fuel reservoirs and/or a restricted orifice may be provided fluidly in series between the fuel pump and the direct injection nozzle in order to attenuate noise resulting from fuel pump pulsation. A clip holder and clip plate mount the fuel injector to the injector cup.

Abstract: A method and apparatus for attenuating fuel pump noise in a direct injection internal combustion engine. In one proposal, the direct injection fuel nozzle is suspended from a fuel rail in a fashion that avoids direct metal-to-metal contact between the injector and the engine block. The direct injection nozzle may also be connected to the fuel rail by a pair of spaced-apart seals which equalize the longitudinal pressure on the nozzle during operation. Enlarged diameter fuel reservoirs and/or a restricted orifice may be provided fluidly in series between the fuel pump and the direct injection nozzle in order to attenuate noise resulting from fuel pump pulsation.

Abstract: A turbine impeller to be driven for rotation by exhaust gas of an internal combustion engine is fixed to a turbine shaft. The turbine shaft is supported by a radial bearing in radial directions and mounted to a bearing housing. The turbine shaft includes a stepped part which is formed between the turbine impeller and the radial bearing so that the outer diameter of the turbine shaft is greater at the turbine impeller side than at the radial bearing side. The bearing housing includes an oil drain for discharging oil which has lubricated the radial bearing. The distance L from a side face of the radial bearing to the stepped part is set to a value at which oil moving from an end of the radial bearing does not reach the stepped part when a turbine-revolution speed Nt is higher than that Nti which is produced by an idling operation of the internal combustion engine.

Abstract: In order to activate a catalyst in a short time in an internal combustion engine having a turbine, an exhaust bypass flow passage and an exhaust bypass valve and its valve seat provided in the exhaust bypass flow passage are set to sizes large enough to be able to make almost all the amount of the exhaust gas bypass the turbine, and the exhaust bypass valve is controlled by a driving actuator using a motor or a solenoid. Rapid activation of the catalyst is implemented by totally opening the exhaust bypass valve during the starting period of operation of the internal combustion engine to make almost all the amount of exhaust gas flow into the catalyst by bypassing the turbine.

Abstract: A turbine impeller to be driven for rotation by exhaust gas of an internal combustion engine is fixed to a turbine shaft. The turbine shaft is supported by a radial bearing in radial directions and mounted to a bearing housing. The turbine shaft includes a stepped part which is formed between the turbine impeller and the radial bearing so that the outer diameter of the turbine shaft is greater at the turbine impeller side than at the radial bearing side. The bearing housing includes an oil drain for discharging oil which has lubricated the radial bearing. The distance L from a side face of the radial bearing to the stepped part is set to a value at which oil moving from an end of the radial bearing does not reach the stepped part when a turbine-revolution speed Nt is higher than that Nti which is produced by an idling operation of the internal combustion engine.

Abstract: A throttle control device freely sets the throttle opening area changing ratio in the low opening degree range to the intermediate and high opening degree range. The throttle valve is rotatably supported to an air intake passage to vary the area of the air intake passage, and rotated by a throttle lever fixed to the throttle valve. A drive lever is rotated with stepping down of an accelerator pedal by the driver. A cam mechanism transmits rotation of the drive lever, to the throttle lever and a link mechanism having a connecting lever transmits rotation of the drive lever to the throttle lever. The cam mechanism and the link mechanism are switched to be operated corresponding to the opening degree of the throttle valve.

Abstract: An air flow meter for an internal combustion engine comprises an intake air passage of an internal combustion engine, which is composed of a primary flow passage and an auxiliary flow passage having a specified length and a portion adapted to project within the primary flow passage and made substantially parallel to the direction of the air flow passing through the primary flow passage. A sensor for measurement of an intake air flowrate is disposed within the auxiliary flow passage. The primary flow passage is provided with a portion where the cross-sectional area of the primary flow passage is gradually reduced. In the vicinity of this cross-sectional area reducing portion, there is disposed an outlet of the auxiliary flow passage.

Abstract: A gas turbine driven by exhaust gas from an internal combustion engine has a plurality of guide vanes formed at a constant circumferential pitch at a nozzle portion through which the exhaust gas is directed from a chamber in a scroll casing into a space where an impeller is rotatably mounted. The ends of the guide vanes are connected to an annular member which prevent these ends from being distorted or deformed due to thermal expansion under heat.

Abstract: A method and apparatus for attenuating fuel pump noise in a direct injection internal combustion engine. In one proposal, the direct injection fuel nozzle is suspended from a fuel rail in a fashion that avoids direct metal-to-metal contact between the injector and the engine block. The direct injection nozzle may also be connected to the fuel rail by a pair of spaced-apart seals which equalize the longitudinal pressure on the nozzle during operation. Enlarged diameter fuel reservoirs and/or a restricted orifice may be provided fluidly in series between the fuel pump and the direct injection nozzle in order to attenuate noise resulting from fuel pump pulsation.