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1. 发明专利

JPH11351171A FLUID MACHINE 失效
公开(公告)号：JPH11351171A
公开(公告)日：1999-12-21
申请号：JP16048498
申请日：1998-06-09
申请人： TOSHIBA CORP
发明人： SAKATA KANJI , HAYANO MAKOTO , MORISHIMA AKIRA
IPC分类号： F04C18/344 , F04C18/107
摘要： PROBLEM TO BE SOLVED: To provide a fluid machine with more reliability of a blade and high compression efficiency by restricting leak loss in an area where different pressure on the blade is smaller and preventing bending in an area where the different pressure is larger. SOLUTION: A fluid machine includes a cylinder 5 in a cylindrical shape, a roller 12 eccentrically arranged in the cylinder 5 and a spiral blade 16 arranged between the roller and the cylinder and having an operation chamber 17 reduced in displacement from one end to the other end, the blade having its bending modulus set to be changed at a predetermined portion.

2. 发明专利

JPH11148466A FLUID MACHINE 失效
公开(公告)号：JPH11148466A
公开(公告)日：1999-06-02
申请号：JP31070097
申请日：1997-11-12
申请人： TOSHIBA CORP
发明人： HAYANO MAKOTO , SAKATA KANJI , MORISHIMA AKIRA
IPC分类号： F04C29/00 , F04C2/344 , F04C18/107 , F04C18/344 , F04C29/12
摘要： PROBLEM TO BE SOLVED: To lead the inside of a hermetically sealed case to atmosphere low in pressure, and meanwhile, eliminate fluid compression. SOLUTION: The inside of a hermetically sealed case 1 is lead to atmosphere to which cooling medium can be fed, meanwhile, in the inside of the hermetically sealed case 1, a compression mechanism part 7 formed out of a cylinder 21, a roller 23, and of a blade 37, is disposed down below, and an electrically driven mechanism 5 driving the compression mechanism part 7 is disposed upward. And the suction port 45 of a suction passage 43 feeding cooling medium to the cylinder 21, is interposed between the electrically driven mechanism part 5 and the compression mechanism part 7 to prevent cooling medium from ingressing in.

3. 发明专利

JPH10213084A SCROLL COMPRESSOR 失效
公开(公告)号：JPH10213084A
公开(公告)日：1998-08-11
申请号：JP1922097
申请日：1997-01-31
申请人： TOSHIBA CORP
发明人： HAYANO MAKOTO , FUKUDA TAKESHI , SAKATA KANJI
IPC分类号： F04C18/02
摘要： PROBLEM TO BE SOLVED: To make a revolving scroll light in weight by being formed by a material with a coefficient of thermal expansion which is larger than that of a fixed scroll, suppress sealing leakage in a compression chamber and secure efficient compression. SOLUTION: This scroll compressor is constituted of a fixed scroll 25 having a spiral body 29 formed by an involute curve and a revolving scroll 17 having a spiral body 33 formed by the involute curve being engaged with the spiral body 29 of the fixed scroll 25 and forming a compression chamber. The revolving scroll 17 is formed by a material of a coefficient of thermal expansion which is larger than that of the fixed scroll 25, the base circle radius of the involute curve forming the external outer peripheral engagement surface 33a of the spiral body 33 of the revolving scroll 17 is made smaller than the base circle radius of the involute curve forming the external outer peripheral engagement surface 29a of the spiral body 29 of the fixed scroll 25, and the fixed scroll 25 and the revolving scroll 17 are surely engaged.

4. 发明专利

JPH08232860A SCROLL COMPRESSOR 失效
公开(公告)号：JPH08232860A
公开(公告)日：1996-09-10
申请号：JP2518796
申请日：1996-02-13
申请人： TOSHIBA CORP
发明人： SAKATA KANJI , NAGATOMO SHIGEMI , HAYANO MAKOTO , HATORI MITSUO
IPC分类号： F04C27/00 , F04C18/02 , F04C29/00 , F04C29/02
摘要： PURPOSE: To improve sealing performance in a blade end and to ensure stable performance and simultaneously facilitate manufacture by supporting a non- rotating element on a rotating element in such a manner as to freely move, and regulating the travel of the non-rotating element. CONSTITUTION: A non-rotating element 21, the back of which is partially faced on a high pressure space 61, is adapted to freely move only in the thrust direction to a rotating element 22. Accordingly, the force for pressing the non- rotating element 21 to the rotating element side 22 can be always applied to the non-rotating element 21 by suitably setting the pressure receiving area of the non-rotating element 21, and a gap can be prevented from being generated by the force. Further, as the travel of the non-rotating element 21 in the direction of separating from the rotating element 22 is regulated within a fixed range, if the non-rotating element 21 is separated from the rotating element 22 with the liquid compression, for example, it is possible to prevent the time required by the non-rotating element 21 to return to its initial position from being elongated, so that stable performance can be ensured.

5. 发明专利

JPH0882296A ROLLING PISTON TYPE EXPANSION MACHINE 失效
公开(公告)号：JPH0882296A
公开(公告)日：1996-03-26
申请号：JP23930494
申请日：1994-10-03
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： HATTORI HITOSHI , FUTAMURA MOTONORI , SAITO KAZUO , OZU MASAO , SUMITANI SHIGETO , SAKATA KANJI , MYOJIN KAZUHISA , KOBUNA TERUO
IPC分类号： F04C23/00 , F01C11/00
摘要： PURPOSE: To simplify the structure of an expansion machine and improve ease of assembly, reliability and efficiency. CONSTITUTION: This machine is provided with a cylinder 9 which is housed in a sealing case equipped with a suction pipe 15 and a discharge pipe 17 and has a suction port 27 and a discharge port 29 in it, a roller 11 which is mounted in the cylinder 9 so as to rotate eccentrically to form an expansion chamber 23, a main shaft 13 which is supported so as to rotate on a main shaft receiving member 35 and an auxiliary bearing member 37 and gives eccentric rotation to the roller 11, and a inflow timing control means which controls the inflow timing of sucked gas to be fed into the suction port.

6. 发明专利

JPH07269470A SCROLL COMPRESSOR 失效
公开(公告)号：JPH07269470A
公开(公告)日：1995-10-17
申请号：JP6172494
申请日：1994-03-30
申请人： TOSHIBA CORP
发明人： SAKATA KANJI , OZU MASAO , HAYANO MAKOTO
IPC分类号： F04C27/00 , F04C18/02
摘要： PURPOSE:To promote the proper retention of thrust force received by a turning scroll in its operation by installing a recess, where gas in a compression space is guided, on the back of an end plate of this turning scroll, and hermetically sealing this recess with a sliding-contact member. CONSTITUTION:Turning power out of a balancer shank 21 of a main shaft 11 imparts a turning motion with no rotation to a turning scroll 25 via an Oldham's mechanism 39 and thereby gas inhaled from a suction port is compressed in proportion as capacity in compression space 37 lessening toward the center in corresponding to the turning motion, and then this compressed ags is discharged out of a discharge port 43 installed in a fixed scroll 23. In this case, a recess 45 is installed in a backside 33a of an end plate 33 of the turning scroll 25. This recess 45 is hermetically sealed with a ring-form sliding- contact member 47, and interconnected to the compression space 37 via a gas passage 49 piercing through the end plate 33. With this constitution, the gas in the midway of compression is guided into the recess 45 and the compression space 37, whereby the balance of a resultant between the compression space side and the backside of the turning scroll is made so as to be optimally secured.

7. 发明专利

JPH07127585A FLUID COMPRESSOR AND METHOD FOR ASSEMBLING FLUID COMPRESSOR 失效
公开(公告)号：JPH07127585A
公开(公告)日：1995-05-16
申请号：JP17291693
申请日：1993-07-13
申请人： TOSHIBA CORP
发明人： HIRAYAMA TAKUYA , OZU MASAO , SAKATA KANJI , HAYANO MAKOTO
IPC分类号： F04C18/107 , F04B27/06
摘要： 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.

8. 发明专利

JPH07119658A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH07119658A
公开(公告)日：1995-05-09
申请号：JP8981894
申请日：1994-04-27
申请人： TOSHIBA CORP
发明人： SAKATA KANJI , NAGATOMO SHIGEMI , HAYANO MAKOTO , HATORI MITSUO
IPC分类号： F04C29/02 , F04C18/02 , F04C29/04
摘要： PURPOSE:To utilize a lower space as a gas-liquid separator to save the space by leading the sucked low-pressure gas to a compression chamber through the lower space inside of a sealed container, and to eliminate a special cooling device by cooling a motor, which is arranged in the lower space, with the low- pressure gas. CONSTITUTION:A scroll type compressing mechanism 103, of which fixed element 111 is arranged in the upper part and of which movable element 112 is arranged in the lower part, is housed in a sealed container 101. The movable element 112 is turned by a motor 104 arranged in the lower part inside of the sealed container 101 to compress the gas in a compression chamber P. The fixed element 111 is fixed to a frame 102 attached to the wall of the sealed container 101 between the compressing mechanism 103 and the motor 104, and the inside of the sealed container 101 is divided to a low-pressure space 180 of the lower part and a high-pressure space 182 of the upper part. A gas suction port 181 and a gas discharge port 183 are respectively provided so as to face to each space 180, 182. A narrow hole 184 for communicating each space 180, 182 with each other is drilled at a fixed part of the fixed element 111 and the frame 103.

9. 发明专利

JPH0735054A SCROLL COMPRESSOR 失效
公开(公告)号：JPH0735054A
公开(公告)日：1995-02-03
申请号：JP17291593
申请日：1993-07-13
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： HAYANO MAKOTO , SAKATA KANJI , YAJIMA TOSHIYA , KOBUNA AKIO
IPC分类号： F04C18/02 , F04C29/12 , F25B1/04
摘要： PURPOSE:To provide possibility of high efficiency operation over a wide range by furnishing the discharge port with a discharge valve which is opened at a specified discharge pressure. CONSTITUTION:A discharge port 39 is in communication with a discharge pipe 5 via a discharge muffler 41 and discharge passage 43 and is fitted with a discharge valve 45 which is opened at a specified discharge pressure. A compression chamber 33 is formed involving a capacity decrement gradually toward the center in the cyclic motion attaining the discharge pressure from the suction pressure with revolution of scrol 21 during operation at the min. compression ratio, and when the refrigerant is compressed to attain the specified pressure, a discharge valve 45 is opened, so that there is no risk of shortage in compression to ensure that operation takes place with good efficiency. During operation from the min. compression ratio to the max., a compression chamber 33 is formed involving a decrement of the capacity gradually toward the center, and when the refrigerant is compressed to cause attainment of the specified pressure, the discharge valve 45 is opened. This eliminates rapid over- compressing to allow avoiding a pressure loss, and operation with good efficiency can be made over a wide scope.

10. 发明专利

JPH05321854A SCROLL COMPRESSOR 失效
公开(公告)号：JPH05321854A
公开(公告)日：1993-12-07
申请号：JP12880192
申请日：1992-05-21
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： HAYANO MAKOTO , SAKATA KANJI , YAJIMA TOSHIYA , KOBUNA TERUO
IPC分类号： F04C18/02
摘要： PURPOSE:To prevent a leak of a compression chamber due to the difference in thermal expansion and improve the operating efficiency. CONSTITUTION:A spiral body 29 on the fixed scroll 23 side is formed into a spiral shape made gradually larger outward toward the radial direction from the center section than the standard design value of the spiral body against a spiral body 33 on the revolving scroll 25 side, or the spiral body 33 on the revolving scroll 25 side is formed into a spiral shape made gradually smaller toward the center section from the outside than the standard design value of the spiral body against the spiral body 29 on the fixed scroll 23 side.

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