Abstract: Heat generating components in the base housing of a portable computer are thermally communicated with a longitudinal evaporator portion of a thermosyphoning heat pipe. A longitudinal condenser portion of the heat pipe is flattened, bent to a circular shape, and secured in thermal communication to the periphery of a metal housing base plate of an axial fan to form the shroud portion of the fan housing. With its axis vertically disposed, the fan is placed in a plenum area within the base housing beneath a cooling air inlet depression in the top base housing side which permits ambient air to flow into the fan even when the display housing portion of the computer is closed.

Abstract: An apparatus, such as a computer, comprises a housing having an interior portion into which a printed circuit board may be inserted. The printed circuit board, when inserted, is supported by a support structure. A spring mechanism resiliently supports a heat sink structure in contact with a major side portion of the inserted printed circuit board. During operation, fluid flows in thermal transfer relationship with the heat sink structure. In this manner, heat is transferred from the heat sink structure to the fluid.

Abstract: Operating heat generated by a PCMCIA card inserted into the base housing portion of a computer, representatively a notebook computer, is dissipated by a heat sink system disposed within the base housing. In response to insertion of the card into its associated support structure within the base housing, a metal heat sink plate member is resiliently pressed into firm engagement with a side of the inserted card by a spring member interconnected between the plate member and the card support structure. Card operating heat is efficiently transferred to the metal plate member by conduction. To dissipate the heat received by the plate member, a heat removing fluid is flowed against the plate member and caused to receive heat therefrom. Heat received by the fluid is then transferred to ambient air external to the computer to substantially lower the operating temperature of the inserted PCMCIA card.

Abstract: A notebook computer display housing is pivotally connected to its associated CPU housing by a heat dissipating hinge structure having telescoped, relatively rotatable first and second sections respectively anchored to the CPU and display housings. The heat absorbing evaporation end of a first thermosyphoning heat pipe is conductively connected to a heat generating electronic component within the CPU housing, with the heat rejecting condensing end of the heat pipe defining the first hinge structure section. During computer operation, heat from the electronic component is sequentially transferred through the heat pipe and the second hinge structure section, in which the first hinge section is journaled, to the display housing for dissipation therefrom to ambient.

Abstract: Operating heat generated by a PCMCIA card inserted into the base housing portion of a computer, representatively a notebook computer, is dissipated by a heat sink system disposed within the base housing. In response to insertion of the card into its associated support structure within the base housing, a metal heat sink plate member is resiliently pressed into firm engagement with a side of the inserted card by a spring member interconnected between the plate member and the card support structure. Card operating heat is efficiently transferred to the metal plate member by conduction. To dissipate the heat received by the plate member, a heat removing fluid is flowed against the plate member and caused to receive heat therefrom. Heat received by the fluid is then transferred to ambient air external to the computer to substantially lower the operating temperature of the inserted PCMCIA card.

Abstract: An improved engine is provided that more efficiently consumes difficult fuels such as coal slurries or powdered coal. The engine includes a precombustion chamber having a portion thereof formed by an ignition plug. The precombustion chamber is arranged so that when the piston is proximate the head, the precombustion chamber is sealed from the main cylinder or the main combustion chamber and when the piston is remote from the head, the precombustion chamber and main combustion chamber are in communication. The time for burning of fuel in the precombustion chamber can be regulated by the distance required to move the piston from the top dead center position to the position wherein the precombustion chamber and main combustion chamber are in communication.

Abstract: A fuel injection nozzle including a valve having an axial hole therethrough for feeding a first fuel to a collection zone and having a pathway for alternately feeding a second fuel to the same or different collection zone to enable the single nozzle to inject separate streams of each fuel into a compression ignition engine combustion chamber.