Abstract: An example system includes a storage device. The system also includes a file creation component to create a blank file on the storage device. The system further includes a block copy component to edit the blank file to include a block-for-block copy of a boot partition. The system further includes a logical copy component to copy data determined to be live from a root partition to the blank file. The root partition includes live and unreferenced versions of a stored file.

Abstract: Example implementations relate to memory mode categorization. An example boot process modification can include invoking a first service of a client operating system (OS) on top of an enabled host OS, modifying a boot process of the host OS using the first service, and executing applications within the client OS based on the modified boot process of the host OS.

Abstract: Example implementations relate to memory mode categorization. An example boot process modification can include invoking a first service of a client operating system (OS) on top of an enabled host OS, modifying a boot process of the host OS using the first service, and executing applications within the client OS based on the modified boot process of the host OS.

Abstract: An example system includes a storage device. The system also includes a file creation component to create a blank file on the storage device. The system further includes a block copy component to edit the blank to include a block-for-block copy of a boot partition. The system further includes a logical copy component to copy data determined to be live from a root partition to the blank file. The root partition includes live and unreferenced versions of a stored file.

Abstract: A direct fuel injection method and an internal combustion engine provided with appropriate sensors and data input lines to an Engine Control Unit (ECU) for performing this method. The method includes inputting at least data inputs representing a piston position, a rotational speed of the internal combustion engine, and a torque demand into an ECU, calculating in the ECU a calculated start of injection (SOI) for the direct fuel injection that is next based on the data inputs, calculating based on the data inputs and the calculated SOI a desired fuel temperature prior to the direct fuel injection that is next, heating fuel with a system delay not to exceed 5 seconds to the desired heated fuel temperature prior to a direct fuel injection, injecting the heated fuel, and repeating the aforementioned method steps for subsequent direct fuel injections.

Abstract: The present invention provides a fuel injector, comprising a housing having a sealable injector seat; a fuel injector pin disposed within the housing proximate to the injector seat such that the injector seat may be sealed and unsealed by displacing the fuel injector pin; a resilient element biasing the fuel injector pin in an unsealed direction; a piezoelectric actuator disposed within the housing proximal to the fuel injector pin configured to actuate to force the injector pin towards the injector seat to seal the injector seat; and a thermal compensating unit disposed within the housing proximal to the actuator and configured to compensate for thermal expansion or contraction of a component of the fuel injector.

Abstract: The present invention provides a fuel injector, comprising a housing having a sealable injector seat; a fuel injector pin disposed within the housing proximate to the injector seat such that the injector seat may be sealed and unsealed by displacing the fuel injector pin; a resilient element biasing the fuel injector pin in an unsealed direction; a piezoelectric actuator disposed within the housing proximal to the fuel injector pin configured to actuate to force the injector pin towards the injector seat to seal the injector seat; and a thermal compensating unit disposed within the housing proximal to the actuator and configured to compensate for thermal expansion or contraction of a component of the fuel injector.

Abstract: The present invention provides a fuel injector, comprising a housing having a sealable injector seat; a fuel injector pin disposed within the housing proximate) the injector seat such that the injector seat may be sealed and unsealed by displacing the fuel injector pin; a resilient element biasing the fuel injector pin in an unsealed direction; a piezoelectric actuator disposed within the housing proximal to the fuel injector pin configured to actuate to force the injector pin towards the injector seat to seal the injector seat; and a thermal compensating unit disposed within the housing proximal to the actuator and configured to compensate for thermal expansion or contraction of a component of the fuel injector.

Abstract: The present invention provides a fuel injector, comprising a housing having a sealable injector seat; a fuel injector pin disposed within the housing proximate) the injector seat such that the injector seat may be sealed and unsealed by displacing the fuel injector pin; a resilient element biasing the fuel injector pin in an unsealed direction; a piezoelectric actuator disposed within the housing proximal to the fuel injector pin configured to actuate to force the injector pin towards the injector seat to seal the injector seat; and a thermal compensating unit disposed within the housing proximal to the actuator and configured to compensate for thermal expansion or contraction of a component of the fuel injector.

Abstract: A piezoelectric actuator driving is presented that serially actuates individual piezoelectric elements of a multi-element piezoelectric actuator. One embodiment of the invention features a system comprising (1) a piezoelectric actuator having a plurality of piezoelectric elements; and (2) a current source configured to transmit a plurality of electrical currents to the piezoelectric actuator to actuate a corresponding plurality of the piezoelectric elements; (3) wherein the plurality of electrical currents are configured such that one piezoelectric element reaches a maximum actuation before another piezoelectric element begins actuating.

Abstract: The present invention provides a fuel injector, comprising a housing having a sealable injector seat; a fuel injector pin disposed within the housing proximate to the injector seat such that the injector seat may be sealed and unsealed by displacing the fuel injector pin; a resilient element biasing the fuel injector pin in an unsealed direction; a piezoelectric actuator disposed within the housing proximal to the fuel injector pin configured to actuate to force the injector pin towards the injector seat to seal the injector seat; and a thermal compensating unit disposed within the housing proximal to the actuator and configured to compensate for thermal expansion or contraction of a component of the fuel injector.

Abstract: The present invention provides a fuel injector, comprising a housing having a sealable injector seat; a fuel injector pin disposed within the housing proximate to the injector seat such that the injector seat may be sealed and unsealed by displacing the fuel injector pin; a resilient element biasing the fuel injector pin in an unsealed direction; a piezoelectric actuator disposed within the housing proximal to the fuel injector pin configured to actuate to force the injector pin towards the injector seat to seal the injector seat; and a thermal compensating unit disposed within the housing proximal to the actuator and configured to compensate for thermal expansion or contraction of a component of the fuel injector.

Abstract: A fuel injector having a body, an armature, a needle, a seat, and a flat disk that provides both a needle guide and a swirl generator. The body has an inlet portion, an outlet portion, and an axially extending body passage from the inlet portion to the outlet portion. An armature proximate the inlet portion of the body. A needle is operatively connected to the armature. A seat is located proximate the outlet portion of the valve body. The seat includes a first seat surface, a second seat surface, a seat passage extending between the first seat surface and the second seat surface in the direction of the longitudinal axis. The flat disk is located proximate the first seat surface. The flat disk has a first disk surface and a second disk surface. A guide aperture and at least one opening extends between the first disk surface and the second disk surface, and a swirl generator is provided in the second disk surface that communicates with the guide aperture.

Abstract: A method of preheating fuel in a fuel injector with an internal heater energized to reduce emissions. The heater being a ceramic hollow cylinder disposed within a valve body just upstream of a valve seat where fuel is injected through an orifice into the engine. Conductors for energizing the heater extend into the valve body and are sealed against the escape of pressurized fuel. In one version, the conductors are extended through an O-ring to be sealed. In another version the conductors include pins extending through the valve body sidewall with glass seals fused to the valve body and the pins. The conductors may comprise flat foil strips clamped between the O-ring and an elastomeric washer. The conductors also may be molded into the magnetic coil bobbin and sealed where the conductors emerge into the fuel cavity.

Abstract: A fuel injector has an internal heater energized during cold starting to reduce emissions, the heater being a ceramic hollow cylinder disposed within a valve body just upstream of a valve seat where fuel is injected through an orifice into the engine. Conductors for energizing the heater extend into the valve body and are sealed against the escape of pressurized fuel. In one version, the conductors extend through an O-ring to be sealed. In another version the conductors include pins extending through the valve body sidewall with glass seals fused to the valve body and the pins. The conductors may comprise flat foil strips clamped between the O-ring and an elastomeric washer. The conductors also may be molded into the magnetic coil bobbin and sealed where the conductors emerge into the fuel cavity.

Abstract: An engine fuel injection system includes a conventional fuel rail with a top feed fuel injector connected thereto. The overall length of the injector is able to be shortened by the application of compact fuel inlet filter mountings in which a well (deep cup) shaped filter element is positioned to overlap one or both of (1) an adjusting tube within the injector body and (2) a space between the end of the injector fuel inlet tube and the interior of the associated fuel rail. The filter may be fixed within the injector to the adjusting tube or the inlet tube or may be fixed externally of the injector to the fuel rail. Various exemplary embodiments are shown and described.

Abstract: The gain of the airflow meter electrical circuit is modified as a function of engine speed such that at any given throttle opening the gain over one portion of the engine speed range is different from what it is over another portion of the engine speed range. In the disclosed embodiment gain is greater over a lower portion of the speed range than it is over a higher portion of the speed range so that the airflow meter is endowed with increased resolution at low engine speeds where such increased resolution is beneficial. The invention is especially well suited for a hot-wire anemometer type airflow meter.

Abstract: A method of voltage compensation for an air/fuel ratio sensor as may be used in the exhaust system of a fuel injected internal combustion engine. The method comprises the steps of storing the design supply voltage in a look-up table, measuring the real time supply voltage and calculating a binary fraction value from the ratio of the present or real time supply voltage value and the design supply voltage value. The predetermined design threshold voltage value of the sensor is stored and then it is multiplied by the binary fraction value to get a real time threshold voltage value. The voltage output of the sensor is measured and compared with the real time threshold voltage value. In response to the comparison, a control signal is generated indicating whether or not the air/fuel mixture is lean.