Abstract: At a housing, a first gas passage I and a second gas passage II extending along the axial direction, a third gas passage III formed substantially symmetrical to the first gas passage I relative to a plane containing a drive shaft, a fourth gas passage IV formed substantially symmetrical to the second gas passage II and communicating with the second gas passage II and an external component that includes an intake port and an outlet port are disposed. Either the first gas passage or the third gas passage is made to communicate with the intake port to supply a working fluid to a front-side intake chamber and a rear-side intake chamber, and either the second gas passage or the fourth gas passage is made to communicate with a front-side outlet chamber and a rear-side outlet chamber with the gas passage not in communication with the outlet chambers made to communicate with the outlet port.

Abstract: A heat exchanger for a supercritical refrigerating cycle, comprising tubes 510 and tanks 520 which have plural hollow portions 520a and slots 521a for insertion of the ends of the tubes formed, wherein a sectional outline of the hollow portions of the tanks has an approximately semicircular shape with a side corresponding to the diameter directed to the side of the slots. And, the partition members each 523 is disposed between the plate bodies 521 and the tank member 522. The tanks are formed by assembling plate bodies 521 with slots formed and tank members 522 with plural curves formed to configure hollow portions, and the plate bodies are provided with communicating recesses 521b for communicating plural hollow portions.

Abstract: A compressor used in a refrigerating cycle is provided as a miniaturized and lightweight unit at low production cost by selecting an optimal material to constitute components or by forming the housing in a specific shape so as to allow the components to have smaller wall thicknesses while assuring sufficient strength. A tough material achieving a tensile strength greater than 800 N/mm2 is used when forming at least one of the components constituting the housing and the internal mechanisms. In addition, over the area of the housing where the bottom surface and the inner circumferential surface connect with each other, the bottom surface forms an R-shaped portion and the inner circumferential surface forms a sloping portion or an R-shaped portion.

Abstract: At a housing, a first gas passage I and a second gas passage II extending along the axial direction, a third gas passage III formed substantially symmetrical to the first gas passage I relative to a plane containing a drive shaft, a fourth gas passage IV formed substantially symmetrical to the second gas passage II and communicating with the second gas passage II and an external component that includes an intake port and an outlet port are disposed. Either the first gas passage or the third gas passage is made to communicate with the intake port to supply a working fluid to a front-side intake chamber and a rear-side intake chamber, and either the second gas passage or the fourth gas passage is made to communicate with a front-side outlet chamber and a rear-side outlet chamber with the gas passage not in communication with the outlet chambers made to communicate with the outlet port.

Abstract: In tubular portion of a tank, slits are formed in each side face of chambers or across all side faces of the chambers. For partition plates that are to be inserted from the slits, groove portions in which the partition plates are fitted are formed by cutting portions to which the partition plates butt. The slits are formed in the chambers at positions relatively shifted from each other in a direction in which tubes are layered. This structure guarantees that, in the tank for a heat exchanger, bypass leakage of a heat exchange medium between sub-chambers is prevented from occurring when the partition plates are inserted in the tank from the slits provided on the tank side faces. Further, the tank can maintain required strength even if the slits are formed in it.

Abstract: A casing 21 of an automotive air conditioner is formed with a hole TH for accommodating a steering member S extending in a right-left direction of a vehicle. The hole TH extends through the casing 1 in the right-left direction of the vehicle.

Abstract: The lubrication between a shoe and a shoe pocket is improved without having to perform a complicated forming process. In a swash plate compressor comprising a swash plate locked to a drive shaft, which rotates together with the drive shaft, a shoe 31 that slidably contacts the swash plate, a piston 13 slidably disposed within a bore defining a compression space and a shoe pocket 36 that is formed as an integrated part of the piston 13 and slidably fits with the shoe 31, a beveled portion 41 is formed at an edge of an opening at the shoe pocket 36. A recessed portion 40 of the shoe pocket 36 is formed so as to achieve a constant curvature, whereas a projecting portion 32 of the shoe 31 is formed so as to achieve at least two different curvatures. The shoe pocket is designed so that a tangent point 46 of the recessed portion 40 and the beveled portion 41 is set within a strip range 45 over which the projecting portion 32 and the recessed portion 40 achieve contact with each other.

Abstract: A casing is configured to be separable into a fire panel-side part which contains an air-mixing door and mode doors, and is integrally connected to an instrument panel, and a fire panel-side module which contains an evaporator, and a heater core. The fire panel-side module is connected to the instrument panel via the fire panel-side part. When the instrument panel is removed, only the fire panel-side part can be removed together with the instrument panel.

Abstract: A gasket (10) used in a compressor in which a gas is force-fed, improve the sealability and contribute stored miniaturization of the compressor. The gasket (10) includes a raised portion (35) rising so as to surround a sealed portion. An end (43) of the raised portion (37) and a base surface (30) of the gasket (10) are not positioned on a single plane. In addition, the raised portion (35) is constituted with a flat surface (40) set at a height different from the height of the base surface (30) and an inclined surface (41) with a predetermined angle of inclination connecting the flat surface (40) with the base surface (30).

Abstract: A compressor for a vehicle air conditioning system comprises a front casing in which is mounted a swash or wobble plate arrangement operatively connected to a drive shaft and a plurality of pistons each provided with a piston body at one end and a foot portion at its other. A cylinder block is also provided defining a plurality of cylinder bores equally distributed circumferentially around the drive shaft, in each of which bores one of the piston bodies can be reciprocated by the swash or wobble plate, as the drive shaft rotates. The inner wall surface of the front casing defines a plurality of longitudinally extending recesses in positions apposed to each piston. The piston body and the foot portion of each piston are connected by a bridge that is bending resistant and projects outwardly into these apposed recesses. Also, at least one side of the bridge is provided with a laterally projecting wing that supports the piston against the adjacent inner wall surface of the front casing to one side of the recess.

Abstract: A heat exchanger comprising a heat exchange core (1) including a plurality of tubes (2) flowing a medium for heat exchange and a pair of tanks (4) to which ends of said tubes are connected, each tube formed by shaping a plate member (200) not clad with a row laminated brazing material and having a sacrifice layer (210) on an outer surface thereof and a plurality of recessed portions (203) formed on an outer surface of said sacrifice layer and filled with a brazing material (R).

Abstract: A die arm 34 and a punch 35 to be used to punch a hole are inserted into chambers 21 and 22 lying parallel to each other along the direction of ventilation through openings located on one side of the chambers along the lengthwise direction. A partition portion 20 has a small wall thickness T1 relative to the wall thicknesses of partition portions in the related art, in a range of equal to or greater than 0.4 mm and equal to or less than 1.65 mm, so as to ensure that the punch unit achieves a high enough level of fatigue resistance to assure a specific number of uses without a failure even though the fulcrum and the power point of the die arm 34 and the punch 35 are not on a single axis along the operating direction and also that the partition portion 20 with the smaller wall thickness still has sufficient strength to prevent deformation.

Abstract: In order to reduce the amount of refrigerant circulating within a variable displacement compressor to thereby improve compression efficiency, a control valve is configured to comprise a ball valve for controlling the flow rate of refrigerant flowing from a discharge chamber to a crankcase, a spool valve for controlling the flow rate of refrigerant flowing from the crankcase to a suction chamber, a diaphragm for sensing suction pressure, and a solenoid for setting the suction pressure, wherein the spool valve starts flow rate control after the ball valve is fully closed or nearly fully closed, and the ball valve starts flow rate control after the valve lift of the spool valve is minimized or nearly minimized.

Abstract: An intercooler has a case through which supercharging air passes, and a heat exchanger 4 mounted inside the case which allows heat exchange between the supercharging air and a cooling fluid. A frame body 15 is provided at the circumferential edges of air passage portions of the heat exchanger 4 on a supercharging air intake side and a supercharging air outlet side to reduce the gap between the heat exchanger and the inner wall of the case. The heat exchanger 4 has a pair of tanks 43 and 44, tubes communicating between the tanks, and a plurality of fins 46 set along the tubes, and assumes a structure that allows the supercharging air to pass through the heat exchanger a plurality of times by sequentially passing through blocks formed by dividing a heat exchanging unit 4A into a plurality of blocks with partitioning plates 15d.

Abstract: An electromagnetic clutch capable of reducing attracting noise generated when an armature plate is attracted to the friction surface of a rotor, wherein the thickness of the projected part (32) of an elastic member (31) in the state of being compressingly held by an inner plate (26) and the armature plate (12) is increased more than the thickness of the projected part (33) of the elastic member (31) in the state of being compressively held by an outer plate (17) and the armature plate (12), whereby the volume of the projected part (32) of the elastic member (31) can be increased relative to that of the projected part (33).

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: A heat exchanger provided with tubes 210 through which a medium flows and tanks 300 to which the ends of the tubes are connected to perform heat exchange of the medium with heat conducted to the tubes, wherein the tanks each provided with an end plate 320 having holes 321 for connection of the ends of the tubes and a tank plate 310 to which the end plate is fitted; and when it is assumed that a cross section of the tank in its longitudinal direction has a passage area X and a total wetted perimeter length Y for the medium, they have a relationship of X=a·Y2/4 ? and 0.9?a<1.0.

Abstract: A heat exchanger for performing heat exchange of a medium by heat conducted to tubes (210) and fins (220), the heat exchanger is configured by assembling the tubes, the fins, tanks (300) and a connector (400) and heating them in a furnace to be brazed into one body, wherein the connector is made of aluminum or its alloy and has a seating face to be brazed to the outer surface of the tank, and when it is determined that the connector has a surface area of X [cm2] and a volume of Y [cm3], they have a relation of X?1.5·(36?Y2)1/3, Y?30.

Abstract: According to the present invention, a blower/evaporator housing case is provided for housing side-by-side a blower that is rotated by a motor and creates an air flow and an evaporator linked with coolant pipes through which a coolant flows in and out so as to completely prevent leakage of condensed water which collects at the evaporator of an automotive air-conditioning system and also to simplify the structure of a locking device used to lock an expansion valve at the evaporator. The blower/evaporator housing case is constituted of two recessed members, i.e., an upper recessed member and a lower recessed member, set on the two sides of a parting line extending along the horizontal direction. The locking device used to lock the expansion valve is formed at joint portions at the edges of the upper and lower recessed members constituting the blower/evaporator housing case.

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.