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: 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: 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: 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: 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.

Abstract: A diaphragm type damper has a combined member, which is formed by welding a marginal portion of a diaphragm to a half body having a concave portion formed therein, and is fixed to a pressure chamber portion to which high pressure fluid is introduced. A wall thickness of a welding portion of the half body is not relevant to welding, and the heat capacity of the welding portion is small. Since the half body is allowed to have a large wall thickness, leakage from the welding portion and damage to that portion can be prevented. In addition, the diaphragm type damper of this present invention can be easily assembled, since it requires only fixing the combined member to the pressure chamber portion.

Abstract: A method for carrying out fuel injection using a variable nozzle hole type fuel injection nozzle and a jerk type fuel injection pump. The variable nozzle hole type fuel injection nozzle has in its tip a well formed by an enclosing wall in which are provided a number of nozzle holes (35). A rotary valve (7) rotatable by an actuator (9) is disposed in the well and has fuel passages (73) so provided in the same number as the nozzle holes (35) that the fuel passages (73) can be connected with the nozzle holes (35) to a degree which varies with the angle of the rotary valve (7). A non-injection period in the rotation of the jerk type fuel injection pump B is detected using an encoder pulse and when the jerk type fuel injection pump B is rotating at high speed the angle of the rotary valve (7) is changed in steps until the rotary valve (7) reaches a target angle (.theta.D) corresponding to a required nozzle hole area by the actuator (9) being driven a required number of times only in the non-injection period.

Abstract: There is provided a vane compressor which prevents leakage of refrigerant gas by decreasing the number of airtight interfaces between component parts and prevents seizure from occurring between its rotor and its side block without surface treatment of the side block. The vane compressor has a cam ring. The rotor is rotatably received in the cam ring. A first head is secured to one end face of the cam ring. A second head is secured to another end face of the cam ring in a manner such that the second head closes an opening of the another end face of the cam ring and one end face of the rotor can be brought into contact with the second head. The side block is received in the first head in a manner such that it closes an opening of the one end face of the cam ring and another end face of the rotor can be brought into contact with the side block.

Abstract: When forming a circular tube-shaped header pipe by rolling a plate material, surfaces extending at a right angle to the internal and external surfaces of the plate material are formed at the two side edges extending in the lengthwise direction, and the plate material is rolled in such a manner that the two side edges face opposite each other while setting the two side edges in a non-contact state. In this process, the gap between the two side edges is set at or less than 0.3 mm. In order to manufacture this header pipe, a plate material that has been cut to a specific length is trimmed in the direction of its short side to achieve a specific dimension and also at a right angle to the front and rear surfaces of the plate material. After a piping insertion hole is formed, the entirety of the plate material is rolled so that its cross section achieves a U-shape.

Abstract: The fuel injection nozzle according to the present invention comprises a nozzle body provided with nozzle holes, a needle valve that opens and closes the nozzle holes, an armature that is mechanically linked with the needle valve and a stator that faces opposite the armature, so that, by displacing the stator with a micromotor, the lift quantity of the needle valve can be adjusted. In addition, a cover member that rotates slidably around the circumference of the nozzle body is provided and by causing this cover member to rotate with a micromotor, the opening area of the nozzle hole contributing to injection is varied. With these structural features, it becomes possible to intentionally achieve a desired injection pattern.

Abstract: There is provided a clutchless variable capacity swash plate compressor. A valve element is arranged at an intermediate portion of a refrigerant inlet passage, for increasing and decreasing an opening area of the intermediate portion. An urging member urges the valve element in a direction of a large valve opening position in which the opening area is large. An accumulator accumulates the high-pressure refrigerant gas therein to build up pressure for urging the valve element in a direction of a small valve opening position in which the opening area is small. When suction pressure of the suction refrigerant gas is high, a pilot valve closes to inhibit the supply of a high-pressure refrigerant to the accumulator to thereby bring the valve element to the large valve opening position, whereas when the suction pressure is low, the pilot valve opens to permit the supply of the high-pressure gas to the accumulator to bring the valve element to the small valve opening position.

Abstract: A variable capacity vane compressor includes side members secured to opposite end faces of a cylinder block, respectively, and a rotary plate mounted in one of the side members, for adjusting compression starting timing of the compressor to thereby increase or decrease capacity or delivery quantity of the compressor.

Abstract: In a laminated heat exchanger, an intake portion and an outlet portion for heat exchanging medium are provided at one end portion in the direction of lamination. The intake portion is made to communicate with a most upstream pass distance from the one end portion in the direction of lamination via a communicating pipe, and the outlet portion is made to communicate with the most downstream pass at one end portion in the direction of lamination. The communicating pipe is further made to communicate with an odd-numbered pass in the vicinity where the odd-numbered pass changes from the even-numbered pass that immediately precedes it. In addition, the intake portion at one end portion in the direction of lamination is made to communicate with the pass immediately preceding the most downstream pass.

Abstract: The object of the invention is to prevent the quantity of airflow by a fan from decreasing in dependence on the distance between the fan and obstacles such as an engine in a device for introducing and discharging cooling air having a shroud with a high covering rate. In the device for introducing and discharging cooling air having the shroud with the high covering rate, an airflow direction changing member is provided downstream of the fan, and each fixed blade of the member has a shift angle in the radial direction and an attack angle in a rotation direction of the fan, so that the air tends to be discharged outward in the radial direction.