Abstract: The invention relates to an axial piston machine, preferably of swash plate construction, having a revolving cylinder drum (3) arranged on a drive shaft (10). The roller bearing (11) of the drive shaft (10) is force flushed from the housing inner chamber (2) with leakage operating medium. Outside the roller bearing (11) there is arranged a shaft sealing arrangement (12) and there is provided a device for conveying operating medium through the bearing gap of the roller bearing (11). For this purpose a conveyor plate (15) is arranged next to the roller bearing (11) on the drive shaft (10) of the machine.

Abstract: A direct drive cooling fan employs a specially configured, X-shaped mounting chassis to securely mount the drive motor. The preferred fan comprises a parallelepiped housing protectively enclosing an internal subframe securing a drive motor and a propeller. A reinforcing edge circumscribes the housing front and rear to facilitate guard coupling. The subframe comprises two parallel elongated brackets, each formed of channel material. Each strut comprises several regularly spaced apart follower slots to which the X-shaped mounting chassis is mounted. The preferred mounting chassis comprises a pair of complimentary brackets welded to opposite sides the drive motor shell. The brackets comprise a curved, interior cradle that flushly mates with the circumferential periphery of the drive motor. The brackets have wings at either end of the cradle terminating in tabs laying parallel with the subframe brackets. An attachment hole on each tab allows for the attachment of the mounting chassis to the subframe brackets.

Abstract: A process for controlling the quantity of fuel injected into a diesel engine comprising at least one cylinder includes the steps of determining the pressure variation (.increment.P) within at least one cylinder around a specific time of the engine cycle, for two successive cycles (C.sub.1, C.sub.2) having different injection characteristics; deducing therefrom the difference between the quantity of fuel actually injected into the cylinder and a theoretical quantity of fuel; and adjusting the injection parameters so as to balance in real time the quantity of fuel actually injected with the quantity of fuel that is to be theoretically injected. The process is preferably implemented during stabilized running of the engine.

Abstract: In a high-pressure cleaning apparatus comprising an electric motor, a high-pressure pump driven by the electric motor, and an automatic switching-off means for the electric motor including a switch actuatable by an actuating element moveable in dependence upon the pressure or the flow of the liquid being conveyed by the high-pressure pump, in order to reduce the switching expenditure it is proposed that a switching-off element which is manually actuatable on the high-pressure cleaning apparatus be associated with the same switch so that in one position of the switching-off element, the switch cuts off the power supply to the electric motor independently of the pressure or the flow of the liquid being conveyed, whereas in the other position the switch is actuatable by the actuating element.

Abstract: A pump installation used to maintain liquid level in a tank by pumping down liquid introduced into the tank with rotation of an impeller about a vertical axis features an air purging flow defined by axial openings through the pump impeller and an annular clearance space between the impeller drive and the pump housing cover, the space disposed above the impeller axial openings. A support sleeve surrounding the impeller drive and secured to the pump motor and tank top has openings at the bottom thereof which sets up a flushing liquid flow to eliminate solids forced up through the clearance space and into the sleeve interior.

Abstract: A direct injection system and control methodology for two-cycle crankcase compression engines wherein the injection timing is advanced from those normally utilized to avoid the incomplete combustion that results from the prior art method. The injection timing is advanced so that it occurs while the exhaust port is still open but it is timed in such a way that the injected fuel will not be swept out of the exhaust port before the exhaust port closes. The initiation of injection timing is adjusted in response to certain parameters such as engine speed and the volume of intake air flow. In addition, the effects of other cylinders sharing a common exhaust manifold is also compensated for.

Abstract: An internal combustion engine, for motor vehicles having a direct fuel injection and externally supplied ignition, which has at least one combustion chamber enclosed between a cylinder head and a reciprocating piston displaceable in a cylinder bore, the combustion chamber being closable by at least one inlet valve for air aspiration. To attain extensive homogeneity of the mixture formation in direct fuel injection that assures reliable, thorough combustion of the mixture, the combustion chamber is preceded at its upper end by a chamber, which opens toward the combustion chamber and has an inside cross section that is substantially smaller than the combustion chamber and increases steadily toward the combustion chamber. The injection and ignition take place in the chamber.

Abstract: An air-fuel ratio sensor of a limit current type is used for an air-fuel ratio feedback control. When the air-fuel ratio sensor is in a semi-activated state, the air-fuel ratio sensor is driven into an electromotive force generating mode by a current externally applied thereto thereby to shift an electromotive force changing point so that an air-fuel ratio at which the electromotive force changes stepwisely is shifted from the stoichiometric ratio point to a lean zone. When the air-fuel ratio sensor is in a completely activated state, the air-fuel ratio sensor is applied with a voltage to produce a limit current varying with an air-fuel ratio so that a feedback control is performed based on the advanced control theory by using a linear current output characteristics.

Abstract: In a variable-displacement compressor of a swash plate type having a drive shaft (3) with axial ends one of which is connected to a compression mechanism, the drive shaft is urged in an outward direction which is directed from the one to another of the axial ends. A housing (2) has a cylindrical portion (21a) at an end thereof in a predetermined direction. The cylindrical portion extends in the predetermined direction. The drive shaft is rotatably held to the housing and extends within the cylindrical portion. When the drive shaft is rotated, the compression mechanism carries out a predetermined compressing operation.

Abstract: A clip retention arrangement for a fuel injector inserted in a fuel rail seat, in which a U-shaped clip has tabs engaging an injector groove and also has slots captured on ears projecting from opposite sides of the socket. Each of the ears are configured to engage their associated slot to restrain relative rotation and to assist in properly orienting the fuel injector in the seat.

Abstract: A method of operating a diesel engine assembly having a combustion chamber is disclosed. The method includes the step of determining a desired level of NO.sub.x for exhaust gases exiting the combustion chamber and generating a fuel control signal in response thereto. The method further includes the steps of injecting an amount of combustor fuel into a combustor based on the fuel control signal and combusting the amount of combustor fuel in the combustor so as to produce combustion products. The method yet further includes the steps of advancing the combustion products into the combustion chamber during an intake stoke of the diesel engine and injecting diesel fuel with a fuel injector into the combustion chamber while the combustion products are located in the combustion chamber during a compression stroke. The method still further includes the step of combusting a mixture of the diesel fuel and the combustion products so as to produce exhaust gases during a power stroke. An engine assembly is also disclosed.

Abstract: A control device is herein disclosed which comprises a drive piston 12p for changing the position of a slanting plate in a variable capacity pump 11, an electromagnetic proportional valve 13 for driving the drive piston, and a position detector 14 for detecting a position of the slanting plate. The control device performs a flow rate control of operating oil by controlling the electromagnetic proportional valve in accordance with a difference between a flow rate instruction value Fr for the operating oil and a position detection value from the position detector so as to change the position of the slanting plate. The control device further includes a pressure detector 18 for detecting a pressure of the operating oil supplied to an injection cylinder 10, and correcting means for correcting the flow rate instruction value on the basis of a pressure detection value from the pressure detector to output a corrected flow rate instruction value.

Abstract: A regulating device for a hydrostatic positive displacement unit, such as an axial piston machine employing the swash plate principle, includes a control valve which pressurizes a regulating piston which determines the stroke volume or the displacement volume of the positive displacement unit. An electric-hydraulic regulating device having a simple construction is provided with the control valve in the form of a slide valve which can be actuated electrically. In one configuration of the invention, the slide valve can be actuated by a stepper motor.

Abstract: The invention relates to a device for the output regulation of at least one variable displacement pump (1), delivering into a working line, driven by a motor, through adjustment of its displacement by means of a setting device (7) biased in the direction of maximum displacement and which can be acted upon with a setting pressure (20), having a regulation valve (18) associated with the setting device (7), which regulation valve can be acted upon by a counter-pressure corresponding to the working pressure in the working line, whereby the regulation valve (18) responds when the control pressure is greater than the counter-pressure, and so regulates the setting pressure action on the setting device (7) in the direction of a reduction of the displacement of the variable displacement pump (1) that the product of working pressure and output is constant.

Abstract: An abnormality-diagnosing device for an evaporation purge system and an air-fuel ratio controller for an internal combustion engine having the abnormality-diagnosing device incorporated therein, which device can: prevent misdiagnosis as abnormal, which otherwise would occur under the influence of evaporative fuel caused by altitude, or change or swinging of fuel level or fuel; prevent deviation of an air-fuel ratio from a target value during purging of the evaporative fuel, which otherwise would occur under influence of the evaporative fuel resulting from altitude or fuel level; and, prevent deviation of the air-fuel ratio from the target value when the purge valve is opened, whereby a failure in drivability or aggravation of harmful exhaust component values can be prevented when the evaporative fuel is purged.

Abstract: To achieve an integration of components and the rationalization of the default opening mechanism of the throttle valve, a reduction of the load of the motor drive and a stabilization of the throttle control operation. In a default opening setting mechanism with which the default opening of the throttle valve 24 is maintained to be larger than the fully closed position when the electric current does not pass through the motor 12 driving the throttle shaft 18, the throttle lever 3 and the sleeve 45 are inserted and fixed, and the sleeve 42 united together with the return lever 2 is engaged with the sleeve 45 so as to be enabled to rotate in relative to the sleeve 45. The sleeve 42 is energized by the return coil in the close direction of the throttle valve 24 up to the initial opening position. This energized operation enables the return lever 2 to be coupled with the sleeve 3.

Abstract: An inter-cylinder-injection fuel controller for an internal combustion engine which offers fail-safe performance against an increase in the amount of the intake air caused by a trouble in the intake system, and reliably suppresses the engine running speed from abnormally increasing. The fuel controller comprises various sensors 20 for outputting data representing operation conditions of the internal combustion engine, injectors for directly injecting the fuel into the cylinders, and a control unit 89 for operating the amounts F of fuel supplied into the cylinders based upon the operation conditions and for controlling the injectors based upon the amounts of supplying fuel, wherein said various sensors include an amount-of-intaken-air sensor for outputting data that corresponds to the amount Qa of the intaken air, and a crank angle sensor for outputting data .theta.

Abstract: A method of controlling an internal combustion engine includes mechanism including an intake valve and an exhaust valve provided respectively to an intake port and an exhaust port of a cylinder of the internal combustion engine, a valve mechanism control means for controlling said valve mechanism, an operation condition detection for detecting an operation condition of the internal combustion engine, and a throttle valve for controlling an intake amount in response to an operation amount of an acceleration pedal. When the method of the internal combustion engine, wherein when the operation condition detector judges as a low load or a middle load of the operation condition of the internal combustion engine, the throttle valve is controlled to a high opening degree condition regardless of the operation amount of the acceleration pedal, and by controlling a valve closing timing and/or a valve lift amount of the intake valve, the intake amount is controlled.

Abstract: A wellhead assembly including a skid, drum, cable spooled on the drum and level wind mechanism is set forth to extend the cable into and out of a well borehole for production of a stripper well. The cable spools over a measuring wheel extends into the well and supports a bail on the end of it. The bail has a foot valve for filling, thereby enabling retrieval of a bail into a surface located stinger connected with a pump to drain the bail. A control system enables cyclic operation.

Abstract: The present invention relates to a co-axial master piston for use in providing hydraulic fluid to effectuate a compression release braking function and hydraulic fluid to effectuate an exhaust gas recirculation function. In particular, the coaxial master piston includes an inner master piston driven by an exhaust cam to provide the hydraulic force to cause the compression release braking function. An outer piston, driven by the same exhaust cam, provides the hydraulic force to cause the EGR function during positive power operation of the engine and during compression release braking when required.