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    • 52. 发明专利
    • FLUID COMPRESSOR
    • JPH09144676A
    • 1997-06-03
    • JP30290495
    • 1995-11-21
    • TOSHIBA CORP
    • HIRAYAMA TAKUYA
    • F04C18/344F04C18/107
    • PROBLEM TO BE SOLVED: To enlarge a discharging capacity, and improve compressive performance by forming a spiral groove by which a spiral blade arranged on the circumferential surface of a rotor is wound so as to satisfy a specified condition in a relational formula between the circumferential direction and an axial direction distance of the rotor, in a fluid compressor having the spiral blade. SOLUTION: In a compressor mechanism part housed in an enclosed case 1, a rotor 6 is fit to the outer peripheral surface of a cylinder 5, and a piston 8 as a rotor is eccentrically arranged in the cylinder 5. Spiral grooves m, m whose pitch is formed in a gradually small size from an axial direction intermediate part toward both end parts, are arranged on the circumferential surface of the piston 8, spiral blades 10, 10 are allowed to insertably/with drawably wind on respective goorves m, m. In this case, the groove m is formed as a shape connected a plurality of wire shapes which forming change is displayed by a plurality of relational formulas to each other, more preferably, it is formed as a wire shape which is displayed in a relational formula such that the axial direction distance h of the rotor is shortened in association with increase of θfrom a start point O till a prescribed angle θa , and the distance h is enlarged from the prescribed angle θa till 360 deg..
    • 54. 发明专利
    • FLUID COMPRESSOR
    • JPH08159065A
    • 1996-06-18
    • JP30082094
    • 1994-12-05
    • TOSHIBA AVE KKTOSHIBA CORP
    • FUJIWARA HISAYOSHISONE YOSHIKUNIMOTOKATSU TAKASHIHIRAYAMA TAKUYATSUNEKAWA TERUHISA
    • F04C18/344
    • PURPOSE: To improve an oil feeding property by constantly feeding proper quantity of lubricating oil to each of sliding parts and a compression chamber by furnishing an auxiliary oil feeding passage to suck up lubricating oil to a suction guide passage by communicating the suction guide passage and lubricating oil of an oil basin part to each other and using pressure difference between the inside of a closed case and the suction guide passage. CONSTITUTION: An oil basin part 20 to collect and reserve lubricating oil is formed on an inter bottom part of a closed case 1, and lubricating oil is sucked up by oil feeding mechanisms Sa, Sb from this oil basin part 20 in accordance with rotation of a piston 8 and is fed to each of sliding parts. Additionally, lubricating oil of the oil basin part 20 and a suction guide passage 16 are communicated to each other, and lubricating oil is sucked up to the suction guide passage 16 by an auxiliary oil feeding passage 23 by using pressure difference between the inside of the closed case 1 and the suction guide passage 16. Consequently, it is possible to constantly feed proper quantity of lubricating oil to each of the sliding parts and a compression chamber 11 and to improve an oil feeding property.
    • 55. 发明专利
    • FLUID COMPRESSOR AND METHOD FOR ASSEMBLING FLUID COMPRESSOR
    • JPH07127585A
    • 1995-05-16
    • JP17291693
    • 1993-07-13
    • TOSHIBA CORP
    • HIRAYAMA TAKUYAOZU MASAOSAKATA KANJIHAYANO MAKOTO
    • F04C18/107F04B27/06
    • PURPOSE:To easily make the axis of bearing members supporting both ends of a cylinder where a rotor of a motor is mounted coincide with the axis of a stator of the motor to realize the assembly. CONSTITUTION:A fluid compressor is provided with a cylinder 25 where both ends are rotatably supported by both bearing members 27, 29 in a closed case 1, a body of revolution 39 which is arranged in the cylinder 25 in a deviated manner and forms a compression chamber 47, and a driving means 17 consisting of stator 21 of a motor fixed in the closed case 1 and a rotor 23 of the motor which is rotatably arranged inside the stator 21 of the motor and where the cylinder 25 is inserted and fixed. A bearing supporting member 37 provided with a mounting hole where the axes of both bearing members 27, 29 and the stator 21 of the motor and the center of the assembly hole are made to coincide with each other is fixed in the closed case 1, and one of the bearing members 27 to support both ends of the cylinder 25 is directly fixed to the side of the closed case 1 and the other bearing member 29 is inserted and fixed to the assembly hole of the bearing member 37 to realize the assembly.
    • 56. 发明专利
    • FLUID COMPRESSOR
    • JPH05172072A
    • 1993-07-09
    • JP34127391
    • 1991-12-24
    • TOSHIBA CORP
    • HIRAYAMA TAKUYA
    • F04C18/107F04C18/344
    • PURPOSE:To minimize torsion of a rotor and enhance the compression efficiency of an actuation chamber by transmitting torque evenly to the rotor from a cylinder using an Oldham mechanism provided at the center portion of the rotor, while preventing the torque from being localized. CONSTITUTION:An Oldham mechanism 35 which rotates a rotor 21 relative to rotation of a cylinder 17 is fitted into a power transmission portion 23 in such a manner that it can freely slide along the direction in which they are fitted with each other, the power transmission portion 23 being provided at the center portion of the rotor 21. Also, an opening 27 open at one part and an Oldham ring 41 of C-shaped cross section having a pair of opposite engagement recessed portions 39 provided on the right and left sides on a center axis crossing the opening 37 are provided. A pair of blade stoppers 43 are provided which are freely slidably engaged in the respective engagement recessed portions 39 along the center axis to press the end portion of one of blades 27 and which are secured to the cylinder 17. Thereby an efficient compressed state can be secured without increasing the number of components.
    • 57. 发明专利
    • FLUID COMPRESSOR
    • JPH05106571A
    • 1993-04-27
    • JP26760991
    • 1991-10-16
    • TOSHIBA CORPTOSHIBA AVE KK
    • HIRAYAMA TAKUYAHAYANO MAKOTOOKUDA MASAYUKIMOROZUMI NAOYAKUMAZAWA KENJIYAJIMA TOSHIYASAKATA KANJIKOBUNA TERUO
    • F04C18/107
    • PURPOSE:To prevent application of an excessive load on each spiral blade in a fluid compressor embodied in the spiral blade system by furnishing an opening/closing valve which is facing a plurality of working chambers partitioned by the blades and releases the pressure from a working chamber on the high pressure side toward a working chamber on the low pressure side. CONSTITUTION:When current is fed to a motor-driven element 9 for rotating a cylinder 17 constructed in a single piece with a rotor 15, a rotary body 21 is turned through an Oldham ring 23. Because this rotary body 21 makes eccentric rotation, a relative velocity is generated between its peripheral surface and the bore of the cylinder 17 facing the same 21 to cause its revolving relative to the cylinder 17. As a result, the fluid sent into the working chamber 35 on the suction side is compressed while fed one bit by bit to the working chamber 35 on the discharge end side. In this type of compressor, an opening/closing valve 43 is formed at the cylinder 17 in such a way as facing the working chamber 35 on the high pressure side and is operated so that it opens, when a large amount of fluid is confined in the working chamber 35 to put the inside thereof in the overcompressed state, and closes when this overcompressed state goes out.
    • 58. 发明专利
    • FLUID COMPRESSOR
    • JPH0526192A
    • 1993-02-02
    • JP18250491
    • 1991-07-23
    • TOSHIBA CORP
    • HAYANO MAKOTOSAKATA KANJIOKUDA MASAYUKIHIRAYAMA TAKUYA
    • F04C18/107F04C28/00F04C28/24F04C29/02F04C29/04F04C29/12
    • PURPOSE:To enable capacity control without using an inverter in a fluid compressor of spiral blade system by separating refrigerant into gas refrigerant and liquid refrigerant by a gas-liquid separator, and leading the separated gas refrigerant into an operating chamber in the compression process. CONSTITUTION:Refrigerant compressed by a fluid compressor 3 so as to have high temperature and high pressure passes a condenser 11, a first capillary tube 49, a gas-liquid separator 51, a second capillary tube 53 and an evaporator 9, and is returned to the suction pipe of a fluid compressor 3 after completing work. This cycle is repeated. In the case of attaining capacity-up at this action time, a control part 55 is opened to feed the upper layer part gas refrigerant G1, separated at the gas-liquid separator 51, into an operating chamber. In this case, a pressure-enthalpy diagram cycle is to pass d, e, f from a, b, c. Cooling capacity, for instance, is to become G(hf-he), where refrigerant quantity flowing into the operating chamber is Gkg/h and led-in gas refrigerant quantity is gkg/h, so that the cooling capacity is raised by the G(hb-he) part compared to the cooling capacity G(hf-hb) of the standard refrigerating cycle.
    • 60. 发明专利
    • FLUID COMPRESSOR
    • JPH04314987A
    • 1992-11-06
    • JP8017291
    • 1991-04-12
    • TOSHIBA CORP
    • HIRAYAMA TAKUYAOKUDA MASAYUKI
    • F04C18/16F04C18/107
    • PURPOSE:To increase the dimension of a cylinder by suppressing the sliding resistance and secure the operation state with high efficiency by constituting a fluid compressor from a cylinder revolution shaft bearing part for supporting the outer peripheral surface of a cylinder and a piston shaft bearing part which supports an eccentric piston in relative movement enabled state for the cylinder. CONSTITUTION:A fluid compressor is equipped with a spiral shaped blade 51 which is freely fitted into a spiral groove 49 which is formed with the gradually reduced pitch towards a discharge side 21 formed on the outer peripheral surface of a piston 17 and divides the part between the inner peripheral surface of a cylinder 19 and the outer peripheral surface of the piston 17 to a plurality of working chambers 53. Supporting mechanisms 23 and 25 for supporting both the edges of the cylinder 19 and the piston 17 are provided. One supporting mechanism 25 is constituted of a cylinder revolution shaft bearing part 37 for supporting the outer peripheral surface of the cylinder 19 and a piston shaft bearing part 33 for supporting the eccentric piston 17 in relative movement enabled form for the cylinder 19.