Abstract: A thermosiphon cooling assembly for dissipating heat generated by an electronic device includes a housing having a housing top, housing bottom and opposing sides. The opposing sides extend between the housing top and the housing bottom to define a low profile entrance and a low profile exit. A refrigerant is disposed within one or more boiling chambers. Heat generated by the electronic device is transferred to the refrigerant by the boiling chambers for liquid-to-vapor transformation. Condenser tubes having a bottom end and a top end extend from the boiling chambers at a diagonally upward angle across the sides between the housing bottom and housing top. The condenser tubes receive and condense vapor boiled off from the refrigerant. Air moving devices axially move air through the housing. Air is flowed across the condenser tubes to facilitate condensation.

Abstract: A thermosiphon cooling assembly cools an electronic device with a conical condensing tube disposed about a curved central axis curving upwardly from a top of the evaporating unit to an upper distal end and a shroud disposed outward of an exterior surface of the condensing tube at the upper distal end extending axially along the central axis from the upper distal end to a lower edge spaced from the top defining an air opening. An air moving device moves air about the central axis within the shroud to the air opening. A plurality of condensing fins are disposed in the condensing tube and each condensing fin forms a pair of corners with an interior surface of the condensing tube and a wick material is disposed in each of the corners to return condensed vapor to the evaporating unit.

Abstract: A heat exchanger assembly includes a core having first and second header tanks covered by tank caps. A pair of core reinforcing members presenting terminal ends extend between the first and second header tanks. A least one tab and an opening for receiving the tab are used for connecting the core reinforcing members to the tank caps.

Abstract: The evaporative emissions control device comprises a housing having an inlet connectable to a vent port of an evaporative emissions control canister and an outlet for venting to the atmosphere, the housing containing a carbon filter, a bypass passage, and a valve for selectively closing the bypass passage and/or outlet. In a first operating state the valve closes the bypass passage and opens the outlet, whereby gases from the vent port of the canister pass through the adsorbent material before the air is released via the outlet port. In a second operating state the valve opens both the outlet and the bypass passage, whereby the gases can bypass the adsorbent material to provide a high flow rate, for example during refuelling. In a third operating state the valve closes both the outlet and bypass passage, preventing the release of any fuel vapour through the outlet and into the atmosphere.

Abstract: The invention relates to a monolith retainer for a fuel canister. The retainer has a head portion for retaining a monolith within a chamber of the fuel canister and a plurality of resiliently biased leg members, which extend from the head portion along a length of the monolith being retained. The legs are resiliently biased toward the inner wall of the chamber such that, when the monolith resides within the chamber, contact feet of the resiliently biased leg members abut against the monolith. A support ridge is also provided for preventing the monolith from traveling too far into the canister.

Abstract: A valve including a film having edges and a plurality of openings disposed between the edges is supported by the housing of an automotive a heating, ventilation and air conditioning system to control the flow of air blown into the passenger compartment. The film has recesses along both edges. The film is reciprocated along the curved path by a first pair of sprockets supported on a shaft and presenting first axial teeth engaging the recesses along the edges of the film (FIGS. 3-5), or a second pair of sprockets having first radial teeth engaging the recesses in the edges of the film and driven from the shaft by bevel gears (FIGS. 5-8), or third pair of sprockets having second radial teeth engaging the recesses in the edges of the film and driven by a spur (FIG. 9), or by the spur directly engaging the recesses in the edges of the film (FIG. 10).

Abstract: A power striker assembly effects final positioning of a vehicle closure member and includes a fixed frame and a striker member carried on a striker plate for selective engagement of a latch carried on the closure member, to displace the closure member from a presented position to a cinched position. Guide means interconnects the frame and striker plate to effect simultaneous translational and rotational displacement of the striker plate between end limits of travel to produce linear displacement of the striker member. An actuator selectively displaces the striker plate between its end limits of travel in response to a control signal. Finally, an interlock fixes the striker plate in the cinched position in the absence of the control signal.

Abstract: The invention provides a compressor with a shut off valve disposed between the crank case and the suction cavity. The valve is moveable between an open and closed position in response to the pressure in the discharge cavity of the compressor. The valve is an on/off valve and is operable rapidly depressurize the interior of the crank case when the compressor transitions from a minimum stroke. The valve can define first and second fluid pathways. The first fluid pathway can be larger than the second fluid pathway and be selectively opened and closed. The second fluid pathway can be permanently open and act as a bleed between the crank case and the suction cavity.

Abstract: A thermoelectric material having enhanced Seebeck coefficient is characterized by a microstructure comprising nanoscale Pb inclusions dispersed in matrix substantially composed of PbTe. The excess Pb is obtained either by adding Pb in an amount greater than the stoichiometric amount needed to form PbTe, or by adding an additive effective to getter Te so as to produce the desired excess. The method is generally applicable to enhance thermoelectric properties of compounds of Pb, Sn or Ge, and Te, Se, or S.

Abstract: A fuel injector for an internal combustion engine, the injector comprising an injector body having a tip portion defining at least one spray aperture; a pintle extending within the tip portion, the pintle having a head portion engageable with a valve seat to close the spray aperture, the pintle being axially moveable between a closed position wherein the head portion abuts the valve seat and an open position wherein the head portion is spaced from the valve seat; actuating means for selectively urging the pintle towards its open position; guide means being provided within the injector body guiding the pintle for axial movement between its closed and open positions; a fuel supply chamber being defined within the injector body between the spray aperture and the guide means, characterized in that the diameters of the guide means and valve seat are selected such that the pintle is substantially pressure balanced.

Abstract: A vehicle climate control system develops a fog index based on relative humidity at or near the inner surface of the windshield, and uses the fog index to variably override the normal control settings. The relative humidity is combined with a pair of humidity thresholds to form a dimensionless fog index, and fog index values within a predetermined range are applied to a variable path function for transitioning between existing control settings and control settings that maximize defogging.

Abstract: The invention provides a heat sink for flowing coolant into inlet manifold channels extending into a inlet edge of a manifold where the flow is forced downward into parallel and spaced micro-channels extending across the manifold channels and re-directing the coolant up into and out of outlet manifold channels extending into an outlet edge of the manifold and interleaved with the inlet manifold channels, and by maintaining a base-width of the micro-channels in the range of forty microns to one hundred microns, maintaining a base-height of the micro-channels in the range of two hundred microns to four hundred microns, maintaining a manifold-height through of the manifold channels in the range of one thousand microns to three thousand microns, and maintaining a manifold-width of the manifold channels in the range of three hundred and fifty microns to one thousand microns.

Abstract: A heat sink removes heat from an electronic device and comprises a base, a lid. An inner ring of first fins extend radially outwardly first length from an inner circle and extend axially a first height from the top surface of the base, and an outer ring of second fins extend radially inwardly a second length from an outer periphery and extend axially a second height from the top surface of the base. A confining plate extends radially above the fins and is spaced below the bottom surface of the lid whereby coolant fluid flows from an inlet opening of the lid through the center opening of the confining plate and radially outwardly through the fins and upward around the outer edge of the confining plate and into the space above the confining plate to an outlet opening. A nozzle having a throat is disposed above the lid and extends below the lid to the confining plate. A flow diverter extends upwardly from the top surface of the base and into and through the throat of the nozzle.

Abstract: A method for controlling a heating, ventilation and air-conditioning (HVAC) system having an air vent associated with a window for blowing an air flow of controlled temperature thereon; the HVAC system having a refrigeration unit with a compressor and an evaporator, and blowing means for forcing air over the evaporator to the air vent. The method includes a first step (a) of activating the compressor while deactivating the blowing means during a first period for condensing moisture of the air contained in the HVAC system. The method includes a further step (b) comprising, at the expiry of the first period, activating the blowing means and keeping the compressor active during a second period for sufficiently reducing the dew-point temperature of air blown by the HVAC system, and deactivating the compressor at the expiry of the second period.

Abstract: The present invention relates to a heat exchanger having a cooling core consisting of a plurality of parallel, heat exchanging tubes and two manifolds provided with slots, where the ends of heat exchanging tubes are inserted in fluid connection with each manifold and each slot is defined by a slot opening and parallel-running slot walls formed from deformed wall portions of the manifold. In order to improve a rigidity of construction of the heat exchanger the outer sides of said slot are deformed inwardly relative to the manifold wall, forming concavities in the manifold outer surface, the inner sides of said slot are deformed inwardly relative to the manifold wall, forming convexities in the manifold inner surface, and the convexities comprise grooves forming the slot walls in order to accommodate at least a portion of the longitudinal edges of the end of exchanging tube. A method of manufacturing such a heat exchanger manifold is also provided.

Abstract: The invention relates to a method for estimating a heater-core air discharge temperature of an HVAC system. According to the invention, the method uses a model of the heat exchanger. This heat exchanger efficiency model maps a heat exchanger efficiency to a set of actual operating parameters by generating a heat exchanger efficiency coefficient based on said second set of actual operating parameters.

Abstract: A modular drive assembly for a sliding door, comprising: a guide track having a hinge slidably received therein; a pair of pulleys disposed on either end of the guide track; a pair of cables each having an end that is secured to the hinge and the other end is secured to a cable drum of a motor drive unit mounted to the guide track, the motor drive unit being configured to rotate the cable drum, wherein the cable drum is also capable of freely rotating within the motor drive unit when the motor drive unit is not rotating the cable drum, wherein rotation of the cable drum causes the hinge to move in the guide track as one of the cables wraps onto the cable drum while the other one of the cables wraps off of the cable drum.

Abstract: A method is specified for controlling a combustion engine in a motor vehicle, namely for optimally adjusting an air/fuel ratio which is distinguished in that the air/fuel ratio is the result of a regulation process. Individual aspects of the invention further address a regulation method particularly suitable for such regulation in consideration of the available input values and readings. For the purposes of supporting regulation, an adaptation method is specified which can also be used independently of the regulation method or with other regulation methods and which enables the regulation to be continuously adapted to the respective operating conditions, such as, for example, the engine operational performance, and signs of wear and tear and disruptions due to deposits etc. which accompany it.

Abstract: A heat exchanger assembly includes hollow reinforcing members that define openings for receiving supports therein. An end cap is disposed in each open end of cylindrical header tanks and each of the header tanks includes a tubeless length (X) extending inwardly a predetermined distance from each end cap. An inlet and an outlet are disposed in a tubeless length (X). The ends of the reinforcing members extending over the tubeless lengths (X) of the header tanks which include a slot outside each end cap with a tab extending from each end of reinforcing members and into the adjacent slot. All of the components are brazed together in one operation.

Abstract: A centrifugal fan assembly including a housing having a lower surface and a parallel inlet wall that defines an inlet opening. A shaft is supported by the housing for rotating about an axis. A plurality of fan blades are disposed about the shaft and extend radially from the axis for drawing air axially into the fan blades and blowing air radially outwardly. The housing defines a scroll wall that spirals about the axis and defines an outlet air passage that extends substantially tangentially to the axis. The fan blades include extensions that extend through the inlet opening and outside of the inlet wall.