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1. 发明专利

JPH11257268A HELICAL BLADE TYPE COMPRESSOR 失效
公开(公告)号：JPH11257268A
公开(公告)日：1999-09-21
申请号：JP5853098
申请日：1998-03-10
申请人： TOSHIBA CORP
发明人： OKUDA MASAYUKI , FUJIWARA HISAYOSHI , MOROZUMI NAOYA , YAJIMA TOSHIYA
IPC分类号： F04C29/02 , F04C2/344 , F04C18/107 , F04C18/344 , F04C29/00
摘要： PROBLEM TO BE SOLVED: To enhance a lubrication efficiency, thereby enhance the reliability of compressor operations by feeding the optimum amount of lubricant to the respective lubrication parts of a helical blade type compression mechanism, and thereby lubricating the respective parts in such a way that they can be smoothly operated. SOLUTION: This helical blade type compressor 10 has an electric motor part 13, and a helical blade type compression mechanism part 12 housed in the inside of a hermetically sealed case 11. In the compression mechanism part 12, the rotation driving force of the electric motor part 13 is transmitted through a rotating shaft 16 so as to allow the mechanism part to be driven. An oil feeding pump 33 is provided for the tip end part of the rotating shaft 16, and oil discharged from the oil feeding pump 33 is guided to an oil feeding passage 43 extended in the axial direction in the inside of the rotating shaft 16. A plurality of oil feeding ports 45, 46 and 47 are communicated with the respective lubrication parts by way of the oil feeding passage 43, and it is so constituted that each opening area (port diameter) of the respective oil feeding ports 45, 46 and 47 is made gradually smaller as they come up to the side of an oil feeding pump 35 from the places parted from the oil feeding pump 33.

2. 发明专利

JPH11159485A HELICAL BLADE TYPE FLUID MAHCINERY AND CYLINDER MANUFACTURING METHOD THEREFOR 失效
公开(公告)号：JPH11159485A
公开(公告)日：1999-06-15
申请号：JP32918197
申请日：1997-11-28
申请人： TOSHIBA CORP
发明人： FUJIWARA HISAYOSHI , OKUDA MASAYUKI , OTAKA TOSHIO , MOTOKATSU TAKASHI , YAJIMA TOSHIYA , KIDA SHIGEO , HIRAYAMA TAKUYA , YOSHIDA MASATOSHI , ITO TATSUYA
IPC分类号： F04C18/344 , F04C18/107 , F04C18/30 , F04C18/356 , F04C29/00
摘要： PROBLEM TO BE SOLVED: To provide a helical blade type fluid compressor making the assembling easy by simplifying an assembling structure, improving reliability and improving compressor function (pump function) and performance and cylinder manufacturing method therefor. SOLUTION: A helical blade type fluid compressor 10 is provided with a cylindrical cylinder 20, a roller 21 which is eccentrically arranged within the cylinder 20 and a helical blade 22 sectioning and forming a plurality of compression chambers 23 along a cylinder shaft direction between this roller 21 and the cylinder 20. The cylinder 20 is constituted of a cylinder inner peripheral part 37 forming a helical blade groove 29 and a cylinder outer peripheral part 38 covering this cylinder inner peripheral part 37. The helical blade 22 mounted on the roller 21 freely slidably fits into the blade groove 29 of the cylinder 20. Fluid to be compressed is compressed, radially moving the compression chambers 23 from a suction side on one side of the cylinder 20 toward a discharge side on the other side of the cylinder 20 by revolution or rotation of the roller 21.

3. 发明专利

JPH08247062A ROTARY COMPRESSOR 失效
公开(公告)号：JPH08247062A
公开(公告)日：1996-09-24
申请号：JP5587995
申请日：1995-03-15
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： HAYANO MAKOTO , YAJIMA TOSHIYA , FUKUDA TAKESHI , KASHIMA KOJI , SANO TETSUO , OZU MASAO , KOBUNA TERUO
IPC分类号： F04C29/02 , F04C18/356 , F04C29/04
摘要： PURPOSE: To restrain penetration quantity of a refrigerant into lubricating oil small by making the inside of a closed case in a low pressure type by way of providing an oiling means on the suction side of a cylinder of a compression mechanism part storing a roller eccentrically rotating in the cylinder. CONSTITUTION: A refrigerant is delivered to the inside of a closed case from a first suction passage 3, sucked in a compression chamber 39 through a second suction passage 15 and a suction port 41, and discharged gas after compression is discharged outside through a discharge port 43, a discharge chamber 45 and a discharge passage 51 at the time of driving a rotary compressor. At this time, gas is separated by centrifugal force generated by rotation of a gas exhaust hole 59 and a gas exhaust hole 20 on the side of a disc 14 as the gas exhaust holes 59 and 20 are rotated with a rotor 9, and consequently, pressure in a vent hole 16 is lowered and suction force is increased, feeding quantity of lubricating oil OL by a vane pump 57 is increased, and certain oil feeding is carried out.

4. 发明专利

JPH08144976A ROTARY COMPRESSOR 失效
公开(公告)号：JPH08144976A
公开(公告)日：1996-06-04
申请号：JP28175794
申请日：1994-11-16
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： HAYANO MAKOTO , YAJIMA TOSHIYA , FUKUDA TAKESHI , KOBUNA TERUO
IPC分类号： F04C23/00 , F04C18/356 , F04C23/02
摘要： PURPOSE: To optimize a compression chamber and improve compression efficiency even in the use of an alternative coolant by forming a compressor mechanism, so as to satisfy the specified expression on the basis of cylinder inner diameter, cylinder height, and a crank eccentric amount. CONSTITUTION: Regarding a rotary compressor with a sealed case 1 housing a plurality of cylinders 13 and 15 separated from each other via a division 17, and rollers 31 and 33 laid in each of the cylinders 13 and 15 for eccentric rotation, a compressor shape is devised, so that a value obtainable from an expression H/(Ds.e) is between 0.07 and 0.13 where Ds stands for cylinder inner diameter, H for cylinder height, (e) for a crank eccentric amount to cause the eccentric rotation of the rollers 31 and 33, and T for the minimum tight breadth of the division 17, respectively. Also, a lubricant used for a compression mechanism 7 has a compatible property, and the viscosity grade thereof is equal to or above VG56.

5. 发明专利

JPH04234591A SCROLL COMPRESSOR 失效
公开(公告)号：JPH04234591A
公开(公告)日：1992-08-24
申请号：JP75991
申请日：1991-01-08
申请人： TOSHIBA CORP
发明人： NAGATOMO SHIGEMI , SASAHARA YUTAKA , YAJIMA TOSHIYA
IPC分类号： F04C18/02
摘要： PURPOSE:To provide a low-vibration, low-noise and high reliability scroll compressor in which the flow process of gas to be compressed at the time of discharge is well balanced. CONSTITUTION:A scroll compressor 11 includes a fixed scroll 16 and a turning scroll 17, wherein the turning scroll 17 is disposed between a frame 27 and the fixed scroll 16, and there is provided a rotary shaft 18 which has a main shaft portion 32 and an eccentric shaft portion 33 and pierces the turning scroll 17, the eccentric shaft portion 33 being positioned inside the turning scroll 17. In this scroll compressor 11, two discharge holes 42, 42 for passing gas to be compressed to flow out are provided on the fixed scroll 16, and the discharge holes 42,42 are disposed symmetrically about the axis of the fixed scroll 16.

6. 发明专利

JPH0463991A FLUID COMPRESSOR 失效
公开(公告)号：JPH0463991A
公开(公告)日：1992-02-28
申请号：JP17333390
申请日：1990-06-30
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： YAJIMA TOSHIYA , OKUDA MASAYUKI , HIRAYAMA TAKUYA , SAKATA KANJI , HAYANO MAKOTO , KOBUNA TERUO
IPC分类号： F04C18/22
摘要： PURPOSE:To appropriately feed oil to the whole circumference of a blade groove regardless of operating condition by providing an intermittent feed oil means on the hole part communicating the lubricating oil introducing passage to the bottom part of the helical groove provided on a rotor. CONSTITUTION:In a compressor 1, a rod 11 is provided with an oil introducing passage 26 along the center axis A. One end of the oil introducing passage 26 is communicated to an oil introducing passage 26a of a perpendicular hole to the center axis A communicating to the bottom part on the discharge side of a helical groove 19. The oil introducing passage 26a is provided with an intermittent feed oil mechanism 40. Hereby, when the pressure in a closed case 2 is raised by rotation of a cylinder 7, lubricating oil 29 is passed through an introducing pipe 28, a through hole 27, and the oil introducing passage 26, passed through the intermittent feed oil mechanism 40 moving up and down accompanied with up and down motion of a blade 21 against the groove 19, and intermittently introduced to the space between the bottom part of the groove 19 and the blade 21. Consequently, appropriate oil feeding can be performed extending over whole circumference of the groove 19 regardless of operating condition.

7. 发明专利

JP2000009068A LIQUID COMPRESSOR 失效
公开(公告)号：JP2000009068A
公开(公告)日：2000-01-11
申请号：JP18084998
申请日：1998-06-26
申请人： TOSHIBA CORP
发明人： OTAKA TOSHIO , FUJIWARA HISAYOSHI , OKUDA MASAYUKI , YAJIMA TOSHIYA , MOROZUMI NAOYA , FUKUDA TAKESHI , KIDA SHIGEO
IPC分类号： F04C29/00 , F04C18/107 , F04C18/344
摘要： PROBLEM TO BE SOLVED: To provide a liquid compressor in which a thermal loss of a discharge gas is reduced and a volumetric efficiency of a suction gas is improved. SOLUTION: A compression mechanism part 3 of this liquid compressor comprises a cylinder 11 having a cylindrical wall, a roller 8 eccentrically arranged within the cylinder 11, a suction pipe 12 through which a fluid is fed to a space between the roller 8 and the cylinder 11, and a spiral blade 10 provided between the cylinder 11 and the roller 8. At least either of the cylinder 11 or the roller 8 has a ceramic coating layer 14.

8. 发明专利

JPH1077977A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH1077977A
公开(公告)日：1998-03-24
申请号：JP23304296
申请日：1996-09-03
申请人： TOSHIBA CORP
发明人： KAWABE ISAO , CHIYOTANI TSUKASA , YAJIMA TOSHIYA , HIRANO KOJI
IPC分类号： F04C18/02
摘要： PROBLEM TO BE SOLVED: To provide a scroll type compressor in which an abnormal sound and a defective compression are not generated by sealing a compression space by pushing a fixed scroll against a turning scroll stably, in the transition state of the usual operation time, start time and a frost removing time. SOLUTION: This compressor is provided with a small hole 75c for communicating a suction space Q with a discharge space U, a pressing plate 75 in which main discharge port 75d, 75d is formed, a moving ring 73 for expanding the area of the small hole 75c and main discharge port 75d, 75d by installing movably in an axial direction in response to the discharge pressure in the discharge space U of a compressed gas compressed by a compression part 60 and becoming from a contact state to a separation state for the pressing plate 75 and an elastic member 74 energized in the direction for separating the moving ring 73 from he fixed scroll.

9. 发明专利

JPH09329090A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH09329090A
公开(公告)日：1997-12-22
申请号：JP15133796
申请日：1996-06-12
申请人： TOSHIBA CORP
发明人： YAJIMA TOSHIYA , CHIYOTANI TSUKASA
IPC分类号： F01C1/02 , F02C3/00 , F04C2/00 , F04C18/00 , F04C18/02 , F04C27/00 , F04C28/26 , F04C28/28 , F04C29/00 , F04C29/10
摘要： PROBLEM TO BE SOLVED: To provide a proper pressing force under all operational conditions without requiring any large torque at the time of start by providing a stopper part for blocking the movement of a moving member when the elastic force of an elastic member reaches a specified value in such a way that an elastic member makes pressing energization on a fixed scroll by means of a specified elastic force. SOLUTION: High pressure gas ejected from an ejection port 9 is filled in a spatial part between inner and outer cylinder part 18, 21 simultaneously with start of compressive operation so as to apply back pressure to a moving cylinder 16. The moving cylinder 16 is moved downward against the elastic force of a coil spring 15 and when it descends by a preset distance, it is hocked on a stopper part 17 and its descending movement is regulated so as to force the preset elastic force of the coil spring 15 to act on a fixed scroll 7. The fixed scroll 17 is pressed on a turning scroll 6 by this elastic force and the seal of the compressive space S wider compressive operation is made in its perfect state. Thereby, without requiring any large torque at start and under all operational conditions, a proper pressing force can be obtained.

10. 发明专利

JPH08247060A ROTARY COMPRESSOR 失效
公开(公告)号：JPH08247060A
公开(公告)日：1996-09-24
申请号：JP5580795
申请日：1995-03-15
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： HAYANO MAKOTO , YAJIMA TOSHIYA , FUKUDA TAKESHI , KASHIMA KOJI , SANO TETSUO , OZU MASAO , KOBUNA TERUO
IPC分类号： F04C29/02 , F04C18/356 , F04C29/04 , F04C29/12
摘要： PURPOSE: To reduce refrigerant charging quantity and to secure a compression state favourable in efficiency. CONSTITUTION: A second suction passage one end of which faces the inside of a closed case 1 and through which a refrigerant led to the closed case 1 by a first suction passage 3 is provided and the other end of the second suction passage is connected and allowed to communicate with a suction port 33 of a compression mechanism part 5 in a rotary compressor to compress the refrigerant led by the first suction passage 3 to the inside of the closed case 1 in which lubricating oil OL is charged and to discharge it out of the closed case 1 through a discharge passage 45.

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