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1. 发明专利

JPH0861277A MECHANISM FOR FEEDING OIL IN CRANKSHAFT OF COMPRESSOR 失效
公开(公告)号：JPH0861277A
公开(公告)日：1996-03-08
申请号：JP19677494
申请日：1994-08-22
申请人： TOSHIBA CORP
发明人： MIURA KAZUHIKO , SASAHARA YUTAKA
IPC分类号： F04C29/00 , F04C29/02
摘要： PURPOSE: To perform the stable feed of oil during low speed operation and to hold sufficient lubrication function to cope with reduction of the size of a shaft. CONSTITUTION: A thrust plate 24 is brought into contact with the lower end part of the hollow crankshaft 4 of a vertical rotary compressor and the under surface of a bearing plate 14 to hold the crankshaft. Oil suction holes 27 are provided at the positions to communicate with the crankshaft internal hole 28 of the thrust plate. An oil suction hole 27 is formed in a position communicated with the crankshaft internal hole 28 of a thrust plate. Lubricating oil contained on the bottom of a case is sucked in the internal hole 28 of the crankshaft 4 to lubricate a slide surface between the crankshaft 4 and the bearing 14. A plurality of oil holding discs 31 formed of a plurality of annular discs are arranged rotatably integrally with the crankshaft 4 in such a state to bring the outer peripheral surface of each oil holding disc 31 into close contact with the inner peripheral surface of the crankshaft 4.

2. 发明专利

JPH07305916A FLUID COMPRESSOR 失效
公开(公告)号：JPH07305916A
公开(公告)日：1995-11-21
申请号：JP9985794
申请日：1994-05-13
申请人： TOSHIBA CORP
发明人： INOUE TOSHITSUNE , SASAHARA YUTAKA , MIURA KAZUHIKO , TSUCHIYAMA HIDEAKI
IPC分类号： F04B39/00 , F04B39/10 , F25B1/00 , F25B31/00 , F25B31/02 , F25B41/04
摘要： PURPOSE:To provide a fluid compressor and an air conditioner wherein piping construction of the air conditioner is simplified and pressure upon interruption is easily and rapidly balanced. CONSTITUTION:There are provided a closed casing 25, a compressor part 26 provided on the lower portion in the casing 25 for discharging a high pressure fluid after compression into the casing 25, and a motor part 27 for actuating the compressor part 26. There is further provided a rotary four-way changeover valve part 28 on the upper portion in the casing 25 for switching a discharge piping for a high pressure fluid to an outdoor side heat exchanger 62 or an indoor side heat exchanger 63 provided outside the casing 25 and a suction piping for a low pressure fluid from the indoor side heat exchanger 63 or the outdoor side heat exchanger 62 to the compressor part 26. Further the casing 25 includes on an upper end wall thereof a valve base 52 of a changeover valve part 28 disposed, dispersed around a central axis of the casing 25, first closed terminal 91a for the changeover valve part, and a second closed terminal 91b for the motor part 27.

3. 发明专利

JPH04121482A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH04121482A
公开(公告)日：1992-04-22
申请号：JP23920590
申请日：1990-09-10
申请人： TOSHIBA CORP
发明人： SASAHARA YUTAKA
IPC分类号： F04C18/02
摘要： PURPOSE:To improve compression efficiency by a high compression ratio by forming the inner wall curved surface of each blade part of a fixed scroll blade and a turning scroll blade into respective specific curves from the winding end angle of the blade part to a determined angle and from there to the winding start angle. CONSTITUTION:In the blade part 10B of a turning scroll blade, its inner wall curved surface (m) is formed into a curved surface laid along a standard involute curve from a winding end angle phi0 to an angle (phi0-2pi) and a deformed involute curve which is a curve shifted inward from the standard involute curve in proportion to the winding angle phi of the blade part 10B, from this angle (phi0-2pi) to a winding start angle 0. The outer wall curved surface (n) is formed into a curved surface laid along the standard involute curve from the winding end angle phi0 of the blade part 10B to an angle (phi0-3pi), and deformed involute curve which is a curve shifted inward from the standard involute curve in proportion to the winding angle phi of the blade part 10B from this angle (phi0-3pi) to the winding start angle 0.

4. 发明专利

JPH0460188A SCROLL TYPE FLUID MACHINE 失效
公开(公告)号：JPH0460188A
公开(公告)日：1992-02-26
申请号：JP17308490
申请日：1990-06-29
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： HAYANO MAKOTO , SAKATA KANJI , MOROZUMI NAOYA , YAJIMA TOSHIYA , INOUE TOSHITSUNE , OIKAWA SATORU , SASAHARA YUTAKA , KOBUNA TERUO
IPC分类号： F04C18/02 , F04C27/00
摘要： PURPOSE:To well provide a seal between an end plate and a lap end from starting time so as to contrive improvement of starting characteristic by providing a passage for connecting lap space in a delivery side, formed between combined laps, to a back pressure chamber in the end plate of a fixed scroll. CONSTITUTION:In a scroll compressor, a turning scroll 9 makes a turning motion while restricting the revolution on its own axis by an Oldham's mechanism 15 through a rotary shaft 5 by driving a motor 2. A refrigerant, sucked from a suction pipe 27, is compressed and delivered to a delivery path 5b from a delivery hole 28 by changing the volume of closed space 23 between laps 11, 21 periodically to a contraction side in accordance with a position toward the center side from the peripheral side according to this turning motion. Here, the refrigerant, reaching the closed space 23 of the final step, is partly delivered to a back pressure chamber 31 through a port 32, so that a fixed scroll 19 is pressed from a back surface side to the turning scroll 9 so as to prevent protruding ends of the laps 11, 21 from separating from end plates l0, 20.

5. 发明专利

JPH03225094A SCROLL FLUID MACHINE 失效
公开(公告)号：JPH03225094A
公开(公告)日：1991-10-04
申请号：JP2154590
申请日：1990-01-31
申请人： TOSHIBA CORP , TOSHIBA AUDIO VIDEO ENG
发明人： YAJIMA TOSHIYA , SAKATA KANJI , HAYANO MAKOTO , MOROZUMI NAOYA , INOUE TOSHITSUNE , OIKAWA SATORU , SASAHARA YUTAKA , KOBUNA TERUO
IPC分类号： F01C1/02 , F04C18/02 , F04C29/06
摘要： PURPOSE:To reduce noise without causing the complication of structure, damaging the characteristic of an in-case high pressure system, and the like by guiding high pressure gas, discharged from a discharge port, into a space part above the oil surface of lubricating oil through a muffler chamber and a guide pipe. CONSTITUTION:A partition wall 27 is provided to form an end plate 12 and a muffler chamber 33, and its outer face is constantly covered with lubricating oil 2a. One end side of a guide pipe 29 is communicated with the muffler chamber 33, and the other end side of the guide pipe 29 is opened to a space part 1a higher than the oil surface of the lubricating oil 2a. Compressed refrigerant gas is discharged into the muffler chamber 33 from a discharge port 14. This discharged high pressure gas flows into the space part 1a through the guide pipe 29. Hereupon, the gas discharged from the discharge port 14 collides against the partition wall 27 forming the muffler chamber 33. Since the outer face of the partition wall 27 is constantly enveloped with the lubricating oil 2a, the colliding sound can be suppressed to a small level by the buffer action of this lubricating oil 2a.

6. 发明专利

JPH0311179A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH0311179A
公开(公告)日：1991-01-18
申请号：JP14805989
申请日：1989-06-09
申请人： TOSHIBA CORP
发明人： SASAHARA YUTAKA
IPC分类号： F01C17/06 , F04C18/02
摘要： PURPOSE:To improve the volume efficiency by installing the first Oldham's coupling in the center part of the lap of a main rotary blade and forming the second Oldham's coupling in a trailing rotary blade and reducing the resistance in the suction of gas. CONSTITUTION:A scroll compression mechanism part 25 is equipped with a main rotary blade 26 and a trailing rotary blade 27. In the vicinity of the center part of the part where a trailing rotary shaft 35 and the second end plate 33 of the trailing rotary blade 27 are joined, the second Oldham's coupling 36 is formed, and opened in the upper part. At the center part of the lap 29 of the main rotary blade 26, the first Oldham's coupling 37 is installed. The second Oldham's coupling 36 is formed so that the first Oldham's coupling 37 is inserted. The trailing rotary blade 27 revolves for the main rotary blade 26, having a prescribed dimension (d) as radius, through the first and second Oldham's coupling 36 and 37, and the turning moment is transmitted through the contact of a wall surface engagement part 38 with the transmission part 37b, and the both rotary blades 26 and 27 rotate.

7. 发明专利

JPH11336680A HELICAL BLADE TYPE COMPRESSOR 失效
公开(公告)号：JPH11336680A
公开(公告)日：1999-12-07
申请号：JP14291898
申请日：1998-05-25
申请人： TOSHIBA CORP
发明人： OZU MASAO , SASAHARA YUTAKA , AMANO SEIICHI
IPC分类号： F04C18/344 , F04C18/107
摘要： PROBLEM TO BE SOLVED: To improve compressive performance by preventing rocking motion due to lateral pressure to be produced by the gas compression of a roller. SOLUTION: This compressor is provided with a cylinder 8, a roller 15 being eccentrically set up in the cylinder, a compression mechanism part 3 equipped with a blade 26 installed in a space between an outer circumferential surface of this roller 15 and an inner circumferential surface of the cylinder 8 and a plurality of compression spaces 27, and a motor section 4 driving the compression mechanism part 3, respectively. In this case, the roller 15 is inserted through with a turning shaft 2 extending from the motor section 4 into the inner part, while it is eccentrically driven by a pair of crank parts 12A and 12B being integrally installed in spacing the specified interval at the turning shaft 2.

8. 发明专利

JPH05149274A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH05149274A
公开(公告)日：1993-06-15
申请号：JP31034991
申请日：1991-11-26
申请人： TOSHIBA CORP
发明人： MORISHIMA AKIRA , INOUE TOSHITSUNE , OIKAWA SATORU , SASAHARA YUTAKA
IPC分类号： F04C18/02 , F04C29/00 , F04C29/02
摘要： PURPOSE:To provide a scroll type compressor improved in supply oil reliability by changing a position of a supply oil pump, reducing a moment load relating to a turning scroll blade, obtaining improvement of mechanical efficiency, and impeding an influence relating to a supply oil path while permitting infiltration of high pressure refrigerant gas to a space in the periphery of a turning scroll blade boss part. CONSTITUTION:A position of a supply oil pump 42 for supplying oil to each sliding part is placed in the upper end of a pivotally supporting boss part 22 of a supporting frame 21 for pivotally supporting a boss part 36 of a turning scroll blade 31, and detached from compression space S with a fixed scroll blade 30. A recessed cavity part 47 of once receiving high pressure compressed gas, delivered from the compression space, and reducing a pressure is provided in a rotary shaft eccentric part internal peripheral surface location, opposed to a point end or boss part point end of the boss part of the turning scroll blade, to eliminate an influence relating to a supply oil path 46 for guiding lubricating oil to each sliding part.

9. 发明专利

JPH051681A SCROLL COMPRESSOR 失效
公开(公告)号：JPH051681A
公开(公告)日：1993-01-08
申请号：JP15644991
申请日：1991-06-27
申请人： TOSHIBA CORP
发明人： MORISHIMA AKIRA , INOUE TOSHITSUNE , OIKAWA SATORU , SASAHARA YUTAKA
IPC分类号： F04C18/02 , F04C29/02
摘要： PURPOSE:To provide a scroll compressor which requires necessary but minimum processing in manufacture with no cost adversely affected, insures the sufficient and proper quantity of oil supply to a compression space, and concurrently enhance reliability with the leakage of gas prevented out of the compression space. CONSTITUTION:Auxiliary oil supply recessed sections 3Oa and 3Ob are provided for the back face side of the end plate 13 of a turning scroll blade 9, lubricant in an oil sump 19 formed within the inner bottom section of a hermetic case 1, is housed in while being exposed to the inner circumferential side of a thrust ring 10 accompanied by the turning motion of the turning scroll blade. Furthermore, when the turning scroll blade is turned, lubricant which has been exposed to the outer circumferential side so as to have been housed in the auxiliary oil supply recessed sections, is not dissipated around the circumference before the auxiliary oil supply recessed sections is closed by the slide-contacting end face of the thrust ring, and lubricant is intermittently supplied to a compression chamber S which is a compression space formed by the stationary and turning scroll blades, out of the circumferential end sections of the stationary scroll blade 8 and tuning scroll blade.

10. 发明专利

JPH04121476A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH04121476A
公开(公告)日：1992-04-22
申请号：JP24012690
申请日：1990-09-12
申请人： TOSHIBA CORP
发明人： NAGATOMO SHIGEMI , INOUE TOSHITSUNE , OIKAWA SATORU , SASAHARA YUTAKA , MORISHIMA AKIRA
IPC分类号： F04C18/02
摘要： PURPOSE:To provide a satisfactory bearing balance to reduce a sliding loss and improve compressing performance by constituting a bearing structure in consideration of the gas pressure and centrifugal force added to a turning scroll blade and a main shaft by the compressing action accompanied by the eccentric movement of the turning scroll blade. CONSTITUTION:A main bearing part 4a is integrally provided on a fixed scroll blade 4, and an electric motor part 6 is provided on a main shaft part 5a extending upward of a main shaft 5 pivotally supported by this bearing part. On the main shaft 5a lower part of the main shaft 5 supported by the main bearing part 4a, an eccentric part 5b is integrally provided, and a bearing boss part 9a formed in the center part of a turning scroll blade 9 is fitted thereto in such a manner as to be capable of turning. A sub-shaft part 5c is integrally provided on the eccentric part 5b lower part of the main shaft 5, and the sub-shaft part 5c is rotatably supported by a sub- bearing 10. The length of the bearing surface which is the inner circumferential surface of the bearing boss part 9a is set to a length for continuously supporting the center part position (g) of a blade part 9c and the center-of-gravity position (c) of the turning scroll blade 9, and the center position (a) of the bearing surface of the bearing boss part 9a is set between the center part position (g) and the center-of-gravity position (c).

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