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71. 发明专利

JPH0797978A COMPRESSOR 失效
公开(公告)号：JPH0797978A
公开(公告)日：1995-04-11
申请号：JP12659694
申请日：1994-06-08
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： MURAKAMI KAZURO , GOTOU KUNIFUMI , KAWAGUCHI MASAHIRO
IPC分类号： F04B27/08 , F04B35/01
摘要： PURPOSE:To provide a compressor which is easy to manufacture and can reduce the early wear of a plate and a cam follower by reducing the pressure of contact between the plate and the cam follower. CONSTITUTION:A plate is curved in one direction so that the distance between cam surfaces S1 and S2 in the direction of movement of a piston 5 is held at a certain value alpha; that is, a quadratic surface formed by the curving of the flat plate in one direction serves as the cam surface S1, and a quadratic surface formed by a locus obtained by the parallel shift of the cam surface S1 by alpha in a direction perpendicular to the plate serves as the cam surface S2. The cam surfaces S1, S2 are of the same radius theta of curvature so that their convex and concave sides are inverted. The sliding surfaces 23b, 24b of shoes 23, 24 that make contact with the respective cam surfaces S1, S2 have the same curvature as the cam surfaces S1, S2. As a result, the shoes 23, 24 are always in contact with the plate 4 on a plane.

72. 发明专利

JPH06346840A WEB CAM TYPE COMPRESSOR 失效
公开(公告)号：JPH06346840A
公开(公告)日：1994-12-20
申请号：JP13783293
申请日：1993-06-08
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： MURAKAMI KAZURO , KAWAGUCHI MASAHIRO , GOTOU KUNIFUMI
IPC分类号： F04B27/08 , F04B1/14 , F04B27/10
摘要： PURPOSE:To improve pressure resistance at a contact position of a cam surface with a shoe by adopting the cam surface wherein a normal vector at a position corresponding to a bottom dead center is inclined outward or inward in respect to a rotary shaft, and arranging the shoes between a piston and the cam surface of a web cam. CONSTITUTION:A rotary shaft 3 is supported to a pair of cylinder blocks 1, 2 through radial bearings 4, 5. A double-head piston 6 is slidably fitted to cylinder bores 1a, 2a of the cylinder blocks 1, 2. A web cam 7 is fixed to the rotary shaft 3. A pair of shoes 8, 9 are arranged between the double-head piston 6 and front/rear cam surfaces 7a, 7b of the web cam 7. A normal vector at a position of the front cam surface 7a corresponding to a bottom dead center is inclined outward in respect to a rotational axis L of the rotary shaft 3. A normal vector at a position of the rear cam surface 7b corresponding to the bottom dead center is also inclined outward in respect to the rotational axis L.

73. 发明专利

JPH0655928A VEHICULAR AIR CONDITIONER 失效
公开(公告)号：JPH0655928A
公开(公告)日：1994-03-01
申请号：JP21052592
申请日：1992-08-06
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： SUZUKI SHIGERU , HOSHINO NOBUAKI , SAKA TAKAHISA , GOTOU KUNIFUMI
IPC分类号： B60H1/08 , B60H1/32 , F24J3/00
摘要： PURPOSE:To provide a vehicular air conditioner having excellent mounting characteristics by integrating a heating device and a cooling device together. CONSTITUTION:A pump part P and a compressor part Q are installed separately in a shaft direction on an input shaft 7 connected to an engine while being sealed by a partition wall plate 1. The first short circuit passage is arranged in the pump part P so as to communicate suction space and delivery space with each other. The second short circuit passage is arranged in the compressor part Q so as to communicate a suction chamber 41 and a delivery chamber 29 with each other. When heating operation is carried out, the short circuit of the pump part P is closed by control of a control valve arranged in the short circuit, and the short circuit of the compressor part Q is opened. When cooling operation is carried out the short circuit of the pump part P is opened by the control of the control valve, and the short circuit of the compressor part Q is closed.

74. 发明专利

JPH05223056A HYDRAULIC DEVICE 失效
公开(公告)号：JPH05223056A
公开(公告)日：1993-08-31
申请号：JP2641992
申请日：1992-02-13
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： HOSHINO NOBUAKI , GOTOU KUNIFUMI , MINAMI WATARU
IPC分类号： F04B1/20 , F04B1/26 , F04B49/00
摘要： PURPOSE:To enable the capacity of a variable capacity swash plate piston pump to be controlled only with a switch operation by constituting a controlling valve for controllable supply and ejection of pressurized oil to a control cylinder to control the inclination of the swash plate in the piston pump such that the controlling valve is controllably changed over according to pressure in a specified ejection pipe line. CONSTITUTION:A variable capacity swash plate piston pump 20 is controlled in the ejection capacity by controlling the inclination of a swash plate 21 and has a control spring 22 for urging the swash plate 21 to always contract the inclination and a control cylinder 23 for urging opposingly the swash plate 21 to expand the inclination. The control cylinder 23 is controlled by a controlling valve 60 with respect to the supply and ejection of pressurized oil. Then, the controlling valve 60 is provided with a spool 62 which makes a supply pipe line 33 leading to the control cylinder 23 communicate only to a drain pipe line 34 within a region of ejection pipe line pressure P1 lower than a first set value Pa in an ejection pipe line 30 interconnecting the pump 20 and an actuator 50 and closes the supply pipe line 33 in a region of the ejection pipe line pressure P1 exceeding a second set value Pb.

75. 发明专利

JPH05124425A HEATING DEVICE FOR VEHICLE 失效
公开(公告)号：JPH05124425A
公开(公告)日：1993-05-21
申请号：JP28635991
申请日：1991-10-31
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： SUZUKI SHIGERU , GOTOU KUNIFUMI , MINAMI WATARU , HOSHINO NOBUAKI
IPC分类号： B60H1/03
摘要： PURPOSE:To perform comparatively rapid heating of the interior of a car room through the starting of an engine and to simultaneously realize excellent loading ability and reduction of a manufacturing cost. CONSTITUTION:A cylinder block 1 is provided at the interior thereof with a gear pump mechanism G through which silicone oil is forcibly transferred and caused to effect reflux and a water jacket. The increase of internal energy and the generation of heat of silicone oil through agitation and shearing are converted into the increase of a water temperature by means of a water jacket.

76. 发明专利

JPH0544631A HYDRAULIC DEVICE FOR INDUSTRIAL VEHICLE 失效
公开(公告)号：JPH0544631A
公开(公告)日：1993-02-23
申请号：JP20172791
申请日：1991-08-12
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： SUZUKI SHIGERU , GOTOU KUNIFUMI , HOSHINO NOBUAKI
IPC分类号： F04B1/26
摘要： PURPOSE:To achieve the power economization by reducing the starting-up torque of a pump and to secure the high performance of a hydraulic device by controlling the max. discharge flow rate of the pump to a constant value. CONSTITUTION:A hydraulic device is equipped with a swash plate 21 which is supported by an inclined pivotal shaft 21a in eccentricity to a bottom dead center side, for the axis center S of a driving shaft driven by an engine E, and a variable capacity type piston pump 20 equipped with a control cylinder for the urging in the direction for increasing the tilt angle of the swash plate against a return spring 22. Further, the hydraulic device is equipped with a discharge conduit 30 for connecting the pump 20 and an actuator 50 and a capacity control valve 32 which is pilot-operated by the differential pressure between before an behind a throttle valve 31 arranged in the discharge conduit 30 and continuously controls the supply and discharge of the pressure oil for a control cylinder 32. The hydraulic device carries out the smooth starting-up of the pump 20 from the min. capacity which is nearly equal to zero and the continuous variable control for maintaining the max. discharge flow rate constant value.

77. 发明专利

JPH04241777A AXIAL PISTON PUMP 失效
公开(公告)号：JPH04241777A
公开(公告)日：1992-08-28
申请号：JP399591
申请日：1991-01-17
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： KANZAKI SHIGEKI , GOTOU KUNIFUMI
IPC分类号： F04B1/20
摘要： PURPOSE:To suppress a pressure drop, cavitation and wearing in sliding surfaces of a cylinder and a valve plate by decreasing spring tension for pressing a cylinder block to the valve plate, reducing friction resistance at the time of low pressure high speed rotation while reducing required torque at the time of starting to improve startability, improving seizure resistance reliability between the cylinder block and the valve plate, and increasing a throttle amount of a cylinder port. CONSTITUTION:In this pump, a stopper ring 7b is provided in an axial hole 7a for inserting a drive shaft 3 of a cylinder block 7. A pressure chamber 23 is formed between this stopper ring 7b and the drive shaft 3. Further to bring an end surface of the cylinder block 7 into press contact with a valve plate 6, a side of a delivery passage 21 is connected to a pressure chamber 23 by a pressure guide passage 25.

78. 发明专利

JPH04237879A AXIAL PISTON PUMP 失效
公开(公告)号：JPH04237879A
公开(公告)日：1992-08-26
申请号：JP650191
申请日：1991-01-23
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： GOTOU KUNIFUMI , SUZUKI SHIGERU , MINAMI WATARU
IPC分类号： F04B1/20
摘要： PURPOSE:To check a discharge pulsation at the time of pump operation and reduce a noise and a vibration and to improve volumetric efficiency. CONSTITUTION:A blind cover 21 is housed unseparately at the side of a tip opening part of a hollow part 10b of a piston 10 by means of a stopper ring, while a throttle passage 21a interconnecting this hollow part 10b and the outside through is formed in each blind cover 21, and a coil spring 23 energizing the blind cover 21 to the side of the stopper ring 22 and holding it is installed in the hollow part 10b in an interposing manner.

79. 发明专利

JPH03231067A HYDRAULIC DEVICE FOR INDUSTRIAL VEHICLE 失效
公开(公告)号：JPH03231067A
公开(公告)日：1991-10-15
申请号：JP2552490
申请日：1990-02-05
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： SUZUKI SHIGERU , GOTOU KUNIFUMI , HOSHINO NOBUAKI
IPC分类号： B62D5/07 , B66F9/22
摘要： PURPOSE:To reduce power loss and secure the high efficiency by sensing the increase of the returned oil quantity which is the surplus in the gentle operation of a loading actuator by a throttle installed in a center bypass passage in a loading control valve and operating the second capacity control valve. CONSTITUTION:As for a hydraulic device for a forklift, etc., a flow dividing valve 14 for dividing the pressurized oil to a power steering circuit 13 side and a loading circuit 15 side is installed in a discharge conduit 12 of a variable capacity type hydraulic pump 11 driven by an engine 10, and a lift cylinder 3 and a tilt cylinder 4 are connected through a load control valve 2 with the loading circuit 15. In this case, a flow rate selector valve 20 equipped with a throttle which is pilot-operated by the pressure in the loading circuit 15 and a capacity control valve 30 for controlling the capacity varying mechanism 40 of the pump 11 are installed in the discharge conduit 12. Further, the second capacity control valve 50 for controlling the capacity varying mechanism 40 in substitution for the capacity control valve 30 is installed, and pilot-operated by the pressure on the upstream side of a throttle 9 installed at the terminal of a center bypass passage 7.

80. 发明专利

JPH03215302A ROTARY OZONIZER 失效
公开(公告)号：JPH03215302A
公开(公告)日：1991-09-20
申请号：JP473990
申请日：1990-01-13
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： SUZUKI SHINICHI , GOTOU KUNIFUMI
IPC分类号： C01B13/11 , H01T23/00
摘要： PURPOSE:To prevent shortage of cooling of a dielectric material and electrodes due to interference of air circulation by equipping the second electrode separated from the outer periphery of a centrifugal fan of the first electrode by a prescribed discharge distance at a blowout opening of a centrifugal blower so that a cross-sectional area of a turning passage may be secured between the surrounding wall of a case and a fan wheel. CONSTITUTION:An alternating high voltage is applied between the first electrode composed of a fan wheel 3 having centrifugal blades 31 and rotating along the inner periphery surface of a cylindrical cylinder wall and the second circular arc-shaped electrode 5 equipped at a prescribed distance to the outer periphery of the fan wheel 3 so that an electrical discharge and the objective ozone may be generated at the gap between both the electrodes and on the surface of a thin dielectric material attached to one side of the second electrode. The generated ozone is introduced to the surrounding wall of a case accompanying a high speed aerial current blown out from the rotating fan wheel 3 in the centrifugal direction and in the rotational direction and then circulated to reach a blowout opening. The ozone is subsequently blown out to the outside through holes 51 of the second electrode 5 equipped at the blowout opening.

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