Abstract: A reciprocating refrigerant compressor includes a cylinder block having a cylinder bore, and a compression chamber defined within the cylinder bore. A cylinder head has a low-pressure chamber for receiving refrigerant gas to be drawn into the compression chamber, and is coupled to one end face of the cylinder block. A valve plate is arranged between the compression chamber and the low-pressure chamber, and includes an inlet port for guiding the refrigerant from the low-pressure chamber into the compression chamber. An inlet valve opens and closes the inlet port and has an end whose shape is adapted to a shape of the inlet port. The shape of the inlet port is non-circular, and a portion of an opening edge of the inlet port protrudes into the inlet port. Tangential lines drawn from the protruding portions intersect the opening edge of the inlet port at at least two points.

Abstract: An assist airblower unit for a heating and ventilating system of a motor vehicle. The airblower includes a single motor and two centrifugal fan wheels encased within a shell. The motor drives both centrifugal fan wheels via a shaft. The centrifugal fan wheels have angled blades that draws in air from a lateral air inlet located on the shell. The air is then forced out of the outlet openings into the automobiles interior to either heat or cool the vehicle. The air source either outputs at the front of the HVAC unit or recirculation air, i.e., cabin air.

Abstract: An air distribution apparatus for a vehicle includes a partition disposed within a housing which separates a first longitudinal airstream from a blower and a cooling element into first and second airstreams, each separately directed through a heater element to form first and second recombined airstreams. The partition redirects the first and second recombined airstreams to a second direction angularly disposed from the first direction of air flow to enable the first and second output airstreams to be separately transmitted to first and second separate zones within the vehicle. Independently movable blend valves are interposed in the first and second airstreams to provide independent selection of temperature of the first and second output airstreams.

Abstract: A swash plate compressor includes a cylinder block, a shaft rotatably supported in a central portion of the cylinder block a swash plate which rotates along with rotation of the shaft a crankcase for retaining the swash plate, and pistons each connected to the swash plate and sliding in a corresponding one of the cylinder bores as the swash plate rotates. Each of the pistons includes a hollow cylindrical portion for sliding within the cylinder bore and a bridge for rollably supporting the pair of shoes. The bridge projects radially outward with respect to the hollow cylindrical portion. The cylinder block is formed with a projecting portion projecting from a central portion of a front end face thereof toward the crankcase, within a range limited such that the projecting portion does not interfere with the connecting portion.

Abstract: A heat exchanger has a connector (7) for connecting a receiver tank (4) brazed to a header pipe (3) and the receiver tank (4) connected to the connector (7) by male screw parts, wherein the connector (7) is formed to have a brazing face (7a) against the header pipe (3) narrower than a mating face (7b) against the receiver tank (4). The connector (7) has a plurality of holes (73), (73) into which a plurality of male screw parts are inserted or screwed, and the holes (73), (73) are formed symmetrically or substantially symmetrically on the brazing face (7a) against the header pipe (3) with respect to a straight line connecting the center of an outflow path (71) and that of an inflow path (72) on the mating face (7b) against the receiver tank (4). And, a groove (74) which divides the brazing face (7a) is formed between the inflow path (71) and the outflow path (72) on the brazing face (7a) against the header pipe (3).

Abstract: A rotary switch mechanism for an operation panel is designed such that the space on a printed board is ensured, the design of electronic parts on the printed board can be readily made, and the attachability of a switch is good. Drive pieces are arranged at predetermined intervals around the end of a rotary knob behind the operation panel, and a detection switch for detecting the passage and the direction of the passage of the drive pieces is disposed in or near the extent where the drive pieces move.

Abstract: A heat exchanger is comprising a core which is consisting of tubes provided with medium passages and fins fitted to the tubes, and tanks to which ends of the tubes are connected, wherein the tube (2) is formed to have a flat cross-sectional shape by joining ends of one or two plates, the ends of the plates have a contact portion which is formed by bending at least one of the plate ends a plurality of times and overlaying the one end on the other end, and the contact portion is provided with a joint portion (2c) which is formed by placing a part (2e) of the contact portion on the top or bottom flat surface and mutually engaging the both ends of the plate.

Abstract: A casing 1 of an automotive air conditioner is formed with a recess 12 for accommodating a steering member S extending in a right-left direction of a vehicle. The casing 1 is divided into an instrument panel-side part Rp and a fire panel-side part Fp with the recess 12 as a boundary.

Abstract: An assist airblower unit for a heating and ventilating system of a motor vehicle. The airblower includes a single motor and two centrifugal fan wheels encased within a shell. The motor drives both centrifugal fan wheels via a shaft. The centrifugal fan wheels have angled blades that draws in air from a lateral air inlet located on the shell. The air is then forced out of the outlet openings into the automobiles interior to either heat or cool the vehicle. The air source either outputs at the front of the HVAC unit or recirculation air, i.e., cabin air.

Abstract: If a motor breaks down, an appropriate measure is taken according to the type pf the breakdown. If the breakdown is judged to be due to abnormal energization of the motor by electrical abnormality judgment means, a drive source for a hybrid compressor is secured while preventing an engine for traveling from stopping by compressor operation continuation means. If it is judged that the driven state of the motor is abnormal, the hybrid compressor is disconnected from the engine to protect the engine from mechanical abnormality of the hybrid compressor.

Abstract: The outer diameter &PHgr;d1 of a top face-side end portion 35 of pistons 7 is made slightly smaller than the outer diameter &PHgr;d0 of a hollow cylindrical portion 36 of the pistons 7 other than the top face-side end portion 35. Thus, the tilt load of a top face-side portion of the piston 7 is divided and distributed, and at the same time, lubricating oil is held at the top face-side end portion 35 of the piston 7.

Abstract: An air flow mixing system for a vehicle air conditioning system having a distribution door to force air from a first air flow to mix with a second air flow of different temperature proximate a merging region in the air conditioning system. In one embodiment, the distribution door has an arcuate passageway or scoop to forcibly route air from the first airflow to the second airflow. In a second embodiment, the distribution door has at least one projecting channel to divide each of the first and second air flows into a plurality of alternating flow paths to promote heat transfer and mixing of the two airflows. In each embodiment, the pivoting distribution door facilitates heat transfer between the airflows resulting in a more even temperate airflow emerging from the merging region.

Abstract: In order to provide an intercooler assuming a simple structure that enables cooling of supercharging air and absorption of any expansion/contraction of the cooling water pipe and the casing attributable to the heat of the supercharging air, intake/outlet pipes of a heat exchanger housed inside a cooling space formed within a case are inserted at cylindrical pipe insertion portions formed at the case, and any gap present between the intake/outlet pipes and the insertion portions are sealed by seal members each constituted of an elastic material formed in a staged cylindrical shape having a first cylindrical portion placed in complete contact with one of the pipe insertion portions and a second cylindrical portion placed in complete contact with either one of the intake/outlet pipes, which are also utilized to fit the heat exchanger in the case with a gap.

Abstract: An air filter assembly for a motor vehicle has a filter housing and an air filter disposed in the housing. The housing has a liquid outlet downstream of the filter and a filter bypass passageway is provided for enabling liquid entering at an air inlet to flow past the filter and exit through the outlet.

Abstract: A casing 1 of an automotive air conditioner is formed with a recess 12 for accommodating a steering member S extending in a right-left direction of a vehicle. The casing 1 is divided into an instrument panel-side part Rp and a fire panel-side part Fp with the recess 12 as a boundary S.

Abstract: In order to ensure that a braising material applied onto the surface of a header pipe does not enter communicating passages for coolant intake/outlet at a connecting block during the furnace braising process implemented to weld the connecting block utilized to connect a liquid tank to the header pipe, pipe-like projections are formed at the pair of communicating passages for coolant intake/outlet formed at the connecting block for liquid tank connection on the side where the header pipe is connected and the pipe-like projections inserted at holes of the header pipe clad with a braising material are welded to a condenser to constitute an integrated part thereof.

Abstract: In an air conditioning unit for an automotive vehicle, which is housed in a space defined by a vehicle panel 7 separating an engine room and a vehicle compartment from each other, an Instrument panel 5 arranged in the vehicle compartment, and a floor panel 6 arranged on a floor of the vehicle compartment, bracket portions 20 for supporting an audio unit 40 are integrally formed with a rear portion of a unit casing 10 in a front-rear direction of the vehicle, the unit casing 10 being located in a central portion of the vehicle in a left-right direction thereof. The bracket portions 20 have upper end fixing plates 31 thereof fixed to the Instrument panel 5 and lower end fixing plates 33 thereof fixed to the floor panel 6, by bolts or pins. Further, casing fixing plates 36 are fixed to a bracket 51 of a steering member 50 by bolts.

Abstract: An HVAC system moisture collection and drainage system is disclosed. The system includes a sloped bottom wall of the system air tract recirc housing in combination with an adjacent extended trough shaped sill for redirecting collected moisture to exit the vehicle and flow into the air intake plenum mounted outside of the vehicle interior compartment. The system does not require any additional or separate structure, tooling, or drains to remove the accumulated moisture in the air recirc housing.

Abstract: An HVAC system moisture collection and drainage system is disclosed. The system includes a sloped bottom wall of the system air tract recirc housing in combination with an adjacent extended trough shaped sill for redirecting collected moisture to exit the vehicle and flow into the air intake plenum mounted outside of the vehicle interior compartment. The system does not require any additional or separate structure, tooling, or drains to remove the accumulated moisture in the air recirc housing.

Abstract: A system for supplying air to first and second regions of a vehicle passenger compartment, has a first fan, a heater device, and first and second air conduits. The heater device has a first air inlet and outlet for air from the first fan and a second air inlet and outlet for recirculating air within the passenger compartment. The first and second outlets of the heater device supply air through the first and second air conduits to the first and second regions of the said vehicle. The second air conduit is connected to said second air outlet of said heater device via a second fan operable in use to selectively supply air through the second conduit to the second region of the vehicle.