Abstract: The present invention provides a radiator achieving a structure that enables integrated brazing, facilitates mounting of an automatic oil cooler and repair on areas with defective brazing and realizes good mountability and recyclability. A tank portion 4 at which tubes 2 of the radiator are inserted is constituted of a first L-shaped tank member 30 and a second L-shaped tank member 40. Prior to the process for assembling the tank portion 4, intake/outlet pipes 9 and 10 are mounted at the first L-shaped tank member 30 and an A/T oil cooler 46 is mounted at the second L-shaped tank member 40 to facilitate mounting of the A/T oil cooler 46 inside the tank portions 4. In addition, since at least the tank portion 4, the tubes 2, the fins 3 and the side plate 11 are brazed together as an integrated unit in a furnace, the production of the radiator is facilitated.

Abstract: In a laminated heat exchanger with a pair of tank portions formed at one side of each tube element and intake/outlet portions for heat exchanging medium provided at one end in the direction of the lamination or in the direction running at a right angle to the direction of the lamination, a constricting portion for limiting the flow passage cross section is provided in an area in the tank portions where the flow shifts from an even-numbered pass to an odd-numbered pass in a plurality of passes. This allows the heat exchanging medium to flow in sufficient quantities into the tube elements near the outlet side of the partitioning portion, preventing inconsistency in temperature distribution. This constricting portion, which is formed in the tank group opposite the tank group where the partitioning portion is provided, is provided at the same lamination position as the partitioning portion. The constricting portion may be also formed with a plurality of holes.

Abstract: In a laminated heat exchanger with a pair of tank portions formed at one side of each tube element and intake/outlet portions for heat exchanging medium provided at one end in the direction of the lamination or in the direction running at a right angle to the direction of the lamination, a constricting portion for limiting the flow passage cross section is provided in an area in the tank portions where the flow shifts from an even-numbered pass to an odd-numbered pass in a plurality of passes. This allows the heat exchanging medium to flow in sufficient quantities into the tube elements near the outlet side of the partitioning portion, thereby avoiding inconsistency in temperature distribution. This constricting portion, which is formed in the tank group opposite the tank group where the partitioning portion is provided, is provided at the same lamination position as the partitioning portion. The constricting portion may be also formed with a plurality of holes.

Abstract: In order to protect a brushless motor, heat generated at a switching device, in response to an abnormality, activates a protection device. The protection device includes a connecting line communicating between a source supply line and the switching device. The protection device is provided near the switching device such that it can sense heat at the switching device with a high degree of sensitivity. Thus, when excessive heat is generated at the switching device, the protection device reaches a specific temperature, whereby the source supply line becomes cut off from the switching device, thereby immediately stopping the operation of the brushless motor.

Abstract: A scroll member for scroll compressor contains a phenol aralkyl resin and a glass fiber and has feature that the dimensional change rate of the member is 0.05% or below under a chemical stability test condition conducted in an atmosphere in which a refrigerant and a refrigerating machine oil coexist at a high temperature and a high pressure, thereby making the resin scroll member practical and chemically stable. The scroll member may further contain a phenol resin and/or glass beads. The scroll member may be formed by a heat treatment having stepwise temperature increase of a molded material from an initial temperature range of 120 to 140° C. to a final temperature range of 170 to 177° C. The heat treatment can be implemented sequentially, e.g., for four hours or more at a temperature range of 120 to 140° C., for four hours or more at a temperature range of 140 to 170° C., and for four hours or more at a temperature range of 170 to 177° C.

Abstract: In order to rotationally drive a gear material (3) when the gear material (3) is gear machined using a hob (not shown), a drive hole (34) having a circular configuration in section and extending on an axis L of the gear material (3) is formed in an end face (3e) of the gear material (3) and a shaft member (4) having a polygonal configuration is employed. The distance from an axis of this shaft body (4) to each angular portion (4a) is larger than the radius of the drive hole (34). The distance from the axis of the shaft member (4) to each side portion (4b) of the shaft member (4) is smaller than the radius of the drive hole (34). The shaft member (4) is fitted, under pressure, in the drive hole (34) and the gear member (3) is rotationally driven through this shaft member (4).

Abstract: In a heat exchanger formed by laminating tube elements alternately with fins over a plurality of levels, a plurality of beads are formed in each of tube elements provided with intake/outlet portions in the areas where the tank portions change to a passage portion. The width of these beads are set to be larger than the beads in other tube elements so as to constrict the passage cross section. In addition, the areas of the communicating holes formed in tank portions away from the intake/outlet portion through which the heat exchanging medium flows in are made smaller than the areas of the communicating holes formed in tank portions near the intake/outlet portion. The centers of the communicating holes in the tank portions further away from the intake/outlet portion are located further downward than the centers of the communicating holes in the tank portions provided closer to the intake/outlet portion.

Abstract: A heat exchanger comprising tubes (4) for configuring a first heat exchanger (A) and tubes (5) for configuring a second heat exchanger (B), the tubes (4) and (5) being disposed upstream and down stream of a direction that air is flown, fins (6) disposed between the tubes (4), (5), and ends of the respective tubes (4), (5) connected into the respective tanks (2), (3), wherein the fins (6) have louvers (7A), (7B), which are formed into a group of louvers (7A), (7A) formed on the fins disposed in the first heat exchanger (A) and a group of louvers (7B), (7B) formed on the fins disposed in the second heat exchanger (B), these two groups having a different shape of louvers.

Abstract: The plunger pump according to the present invention discharges fuel by reciprocation of a plunger, and comprises metallic diaphragm type dampers, provided at a fuel inlet side and a fuel outlet side, respectively, for reducing pressure pulsation of fuel. Each metallic diaphragm type damper comprises a pressure chamber for receiving fuel pressure, a back pressure chamber into which gas is charged, and a metallic diaphragm for defining the pressure chamber and the back pressure chamber. Since the metallic diaphragm type dampers are provided at the fuel inlet side and the fuel outlet side, respectively, noise and vibration caused by pressure pulsation are reduced at the fuel inlet side and the fuel outlet side. Also, since the diaphragms are metallic diaphragms, deterioration thereof generated by fuel liquid and back pressure gas is low, reliability is high, and the lifetime is long.

Abstract: There is provided a blower unit for an air conditioning system for an automotive vehicle. A casing accommodates a blower. The casing is formed with a recirculating air intake port for introducing recirculating air and a fresh air intake port for introducing fresh air. A recirculating air intake door opens and closes the recirculating air intake port. A fresh air intake door opens and closes the fresh air intake port. A linkage links the recirculating air intake door and the fresh air intake door to each other, thereby interlocking the recirculating air intake door and the fresh air intake door to each other.

Abstract: A method of manufacturing flat tubes by forming a flat tube body from a single plate material which is continuously drawn from a drum by either folding it into two or placing two plate materials one upon the other, and cutting the flat tube body in a predetermined length. The method is characterized by the steps of placing the plate material with its inner surface facing downwardly at any selected stage before completion of folding the plate into two, or before completion of placing two plates one upon the other; fluxing the inner surface of the plate material with a liquid flux material, and drying the applied flux material.

Abstract: A housing (2) includes first and second housing components (3A, 3B). The first and second components (3A, 3B) are fixed by bolts (6). Each bolt (6) extends through a central portion of a planet gear (72) of a planetary gear mechanism (7). The planet gear (72) is rotatably supported on the housing (3) through the bolts (6).

Abstract: There is provided a method of manufacturing a rotor, which is capable of manufacturing a sufficiently high-strength and well-finished rotor at a reasonable price. A continuous cast rod is out into a billet having a predetermined length. The billet is heated and then fitted in a die assembly. A plurality of vane slits and a shaft hole are formed in the billet fitted in the die assembly, by the use of a press.

Abstract: A swash plate compressor is provided. The swash plate has sliding surfaces on opposite sides thereof. Pairs of shoes, each of which has a substantially semispherical shape, slide on the sliding surfaces of the swash plate. Each piston is connected to the swash plate via a corresponding pair of the shoes. Guide grooves are each axially formed in an inner peripheral wall of the housing along a path of the linear reciprocating motion of the corresponding piston. Each piston has a body having a first concave portion for supporting a corresponding pair of the shoes, a swash plate-side end having a second concave portion for supporting another of the corresponding pair of the shoes, and a bridge integrally connecting the body and the swash plate-side end such that these portions are axially opposed to each other with space therebetween. The bridge extends radially outward with respect to an outer peripheral surface of the body, and is slidably fitted in a corresponding guide groove.

Abstract: In the sensor: torsion beams 7a, 7b are fixedly connected between the centers of opposite outer sides of central fixed board 1 and the corresponding centers of opposite inner sides of a window 5; electrodes 11a, 11b, 12a, 12b are mounted on a front and a rear surface of weight portions 9a, 9b; and, an outer cover 21, which is constructed of an upper and a lower board 17, 19 provided with electrodes 23a, 23b, 25a, 25b corresponding to the electrodes of the weight portions, is mounted on a side surface of an outer frame 15 in which both the central fixed board 1 and the weight board 3 are received, so that the central fixed board 1 is rotatably supported. It is possible to increase the length of each of the torsion beams 7a, 7b. These electrodes 11a, 11b, 12a, 12b may be produced through a single path in printing process.

Abstract: A bevel gear differential, also referred to as an "open" differential, is modified by asymmetrically distributing bevel pinions around a central axis of a pair of side bevel gears. The asymmetrically distributed pinions generate imbalanced radial forces acting on the side gears, which are converted into increased frictional resistance to differentiation. The force imbalance is managed at frictional interfaces to support a wider range of performance options.

Abstract: A variable capacity, vane-type compressor has a cylinder block with an oval rotor chamber. A plurality of vanes mounted in slots on a rotor rotate inside the rotor chamber on a shaft that is concentric with the minor diameter of the rotor chamber. Valves discharge refrigerant gas from the rotor chamber. The front nose block is located on the front side of the cylinder block and contains a bore for the rotor shaft and a set of needle roller bearings which supports the forward end of the shaft. A circular O-ring groove with an O-ring is located on the rearward side of the front nose block at its perimeter for sealing between the front nose block and the forward side of the cylinder block. The cylinder block has internal, weight-reducing voids located outboard of the rotor chamber. The lower voids serve as an oil sump and supply high pressure lubricant to the undervane pressurization manifolds. Like the front nose block groove, the cylinder block has a circular groove machined on a rearward side.

Abstract: When implementing an origin reset, operating conditions for the origin reset are corrected in correspondence to changes in operating conditions such as the source voltage to implement an accurate origin reset.

Abstract: A flat tube 2 for a heat exchanger which is formed by bending a single plate or overlaying two plates, wherein long beads 11 in a plurality of rows are previously formed on the plate in the longitudinal direction of the plate, the plate has its surface, to which the respective long beads are opposed, formed flat, the tops of the respective long beads 11 and the flat surface are joined, a plurality of passages 12 for a medium are formed within the tube by long beads and the flat surface, sections at the tube ends to be inserted into the header tanks 3, 4 are pressed back to be flat to form tube insertion sections, and a wall relief, which is formed to protrude in the breadth direction of the tube when the tube insertion sections are formed, is used as a stopper 16 to restrict a tube insertion level.

Abstract: Paired planetary gears 3A, 3B are each provided on one end thereof with a long gear portion 31, on the other end with a short gear portion 32, and a neck portion 33 between the long gear portion 31 and the short gear portion 32. The long gear portion 31 of the planetary gear 3A is in engagement with the short gear portion 32 of the other planetary gear 3B at an inner gear portion 31b and with a gear portion 2a of a side gear 2A at an outer gear portion 31a. The long gear portion 31 of the other planetary gear 3B is in engagement with the short gear portion 32 of the planetary gear 3A at the inner gear portion 31b and with a gear portion 2b of a side gear 2B at the outer gear portion 31a.