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41. 发明专利

JPH07133775A FLUID COMPRESSOR 失效
公开(公告)号：JPH07133775A
公开(公告)日：1995-05-23
申请号：JP28128293
申请日：1993-11-10
申请人： TOSHIBA CORP
发明人： MOTOKATSU TAKASHI , TAKASHIMA KAZU , FUJIWARA HISAYOSHI , SONE YOSHIKUNI , HIRAYAMA TAKUYA
IPC分类号： F04C18/16 , F04C29/00 , F04C29/12
摘要： PURPOSE:To restrain abnormal condition such as over compression or over expansion by sufficiently insuring a gas flow, to improve compression efficiency, and to improve wear resistance for the long life by reducing sliding loss of bearing. CONSTITUTION:Both end parts of a cylinder 2 are pivotally supported with bearings 17.18, and a piston 6 having a helical groove 4 formed with the pitch gradually becoming small is eccentrically arranged in the cylinder. A helical blade 5 is fitted in the groove 4 capably of projecting and retreating, and hence a plurality of working chambers 6 partitioned with the blade 5 and gradually becoming small in volume are formed. Further the cylinder 2 and the piston 6 are synchronously rotated at relative peripheral velocity, gas sucked into the cylinder is compressed while gradually transferring gas into the working chambers, cylinder bearing 21 is fitted in the bore of the cyliner, the cylinder bearing is interposed between the cylinder and the bearings and as passage G penetrating the end face on both sides and opening is provided in the cylinder bearing.

42. 发明专利

JPH07119660A FLUID COMPRESSOR 失效
公开(公告)号：JPH07119660A
公开(公告)日：1995-05-09
申请号：JP26877193
申请日：1993-10-27
申请人： TOSHIBA CORP
发明人： HIRAYAMA TAKUYA , FUJIWARA HISAYOSHI , SONE YOSHIKUNI , MOTOKATSU TAKASHI
IPC分类号： F04C18/107
摘要： PURPOSE:To provide a fluid compressor having high reliability by holding the function of blade stoppers to a blade, and furthermore, securely hindering the deformation of the blade end surface by the receiver surface of the blade stopper. CONSTITUTION:A spiral groove 11, in which a blade 12 is fitted, is provided in the periphery of a piston 6, and the piston 6 is eccentrically arranged inside of a cylinder 5 to form plural operation chambers 13 partitioned by the blade 12. The cylinder 5 and the piston 6 are relatively rotated to gradually transfer and compress the gas, which in sucked into the cylinder 5. The cylinder 5 is provided with a suction side blade stopper 21 and a discharge side blade stopper 22 for regulating the transference of the blade 12, and largeness of the blade receiver surface of each stopper is formed equal to the largeness of the abutment surface of the blade end surface or larger than it.

43. 发明专利

JPH06221283A FLUID COMPRESSOR 失效
公开(公告)号：JPH06221283A
公开(公告)日：1994-08-09
申请号：JP1142293
申请日：1993-01-27
申请人： TOSHIBA CORP
发明人： SAKATA KANJI , HIRAYAMA TAKUYA
IPC分类号： F04C18/107
摘要： PURPOSE:To reduce the total length of a rotor so as to miniaturize the whole compressor by forcing the center side starting ends of right and left spiral grooves for forming a compression chamber to face on the center line at least intersecting perpendicularly to the shaft center, and putting both spiral grooves of right and left areas a little to the center position of a rotor. CONSTITUTION:When a cylinder 17 of a compression element 11 is rotated in a body with a rotor 5 by the drive of a motor-driven element 9, a rotor 21 is rotated with eccentricity to the cylinder 17 through an Oldham's ring 34. Accordingly, fluid taken in the respective operating chambers 29, 30 of the central part is compressed and discharged from a pipe 7. At this time, lubricating oil stored in the inner bottom part of a closed case 1 is force-fed to both right and left spiral grooves 25, 26 of the rotor 21 through an introduction path 42, so that the respective blades 27, 28 put in and out from the grooves are lubricated. In this case, the center side starting ends 25a, 25b in both right and left spiral grooves 25, 26 are disposed in such a manner as to shift the phases. The respective starting ends 25a, 26b are respectively faced on the central axis X intersecting perpendicularly to the shaft center or within counterpart areas.

44. 发明专利

JPH05172073A FLUID COMPRESSOR 失效
公开(公告)号：JPH05172073A
公开(公告)日：1993-07-09
申请号：JP34124291
申请日：1991-12-24
申请人： TOSHIBA CORP
发明人： SAKATA KANJI , HIRAYAMA TAKUYA , HAYANO MAKOTO , MOROZUMI NAOYA
IPC分类号： F04C18/107 , F04C18/344 , F04C29/00 , F04C29/02
摘要： PURPOSE:To surely feed oil without being affected by various operating conditions by providing a pump room with an oil inlet which communicates with both an oil introducing passage whose one end faces the inside of the surface of lubricating oil and an oil outlet which communicates with an oil feed passage. CONSTITUTION:In a space defined by a rotor 21, a cylinder 17 and a bearing member 19, a pump room 49 is formed by an eccentric ring 53 which is put in turning motion in conjunction with the rotor 21 and by a vane 55 which moves back and forth correspondingly to the turning motion of the eccentric ring 53. The pump room 49 is provided with an oil inlet 59 which communicates with an oil introducing passage 57 whose one end faces under the level of lubricating oil. Also, an oil outlet 63 is provided which communicates with an oil feed passage 61 through which the lubricating oil is fed to the cylinder bearing surface 18 of the bearing member 19 and the bearing surface 24 of the rotor. Therefore, the lubricating oil can surely be fed to each of the bearing surfaces 18 of the bearing member 19 without being affected by operating conditions such as delivery pressure. Thus inconvenience such as seizure does not occur and stable operating state is secured.

45. 发明专利

JPH05172071A FLUID COMPRESSOR 失效
公开(公告)号：JPH05172071A
公开(公告)日：1993-07-09
申请号：JP34127091
申请日：1991-12-24
申请人： TOSHIBA CORP
发明人： YAJIMA TOSHIYA , HIRAYAMA TAKUYA
IPC分类号： F04C18/107 , F04C18/344 , F04C28/28 , F04C29/00
摘要： PURPOSE:To enhance reliability of a fluid compressor by preventing excessive loads from acting on support shaft portions. CONSTITUTION:In a fluid compressor wherein a spiral blade 33 is freely removably fitted into a spiral groove 31 provided around the outer periphery of a rotor 21 so that during rotation of the rotor 21 a refrigerant flowing in from a suction end is sequentially shifted to an actuation chamber 35 located on the side of a discharge end, a main bearing 19 and an auxiliary bearing 20 are provided with an energizing member 41 which energizes both of the support shaft portions 21a, 21b of the rotor 21 and sets them in eccentric positions. The direction of movement of both of the support shaft portions 21a, 21 which are retreated against the energizing force of the energizing member 41 deviates rearward from a center axis connecting the center of rotation of a cylinder 17 and the center of rotation of the rotor 21.

46. 发明专利

JPH04365984A FLUID COMPRESSOR 失效
公开(公告)号：JPH04365984A
公开(公告)日：1992-12-17
申请号：JP10452391
申请日：1991-05-09
申请人： TOSHIBA CORP
发明人： HIRAYAMA TAKUYA , OKUDA MASAYUKI
IPC分类号： F04C18/344 , F04C18/107
摘要： PURPOSE:To ensure sealing characteristic even when pitch of a blade is broadened so as to enlarge discharging ability. CONSTITUTION:A columnar piston 17, which is inserted into a cylinder 19 in so an eccentric manner that one part of the outer peripheral surface is in contact with the inner circumferential surface of the cylinder 19, and which carries out relative movement to the cylinder 19, is provided. A spiral groove 43, which is formed on the outer peripheral surface of the piston 17, and whose pitch is gradually reduced from the side of a suction part 23 to the side of a discharging part 21, and a spiral blades 45, which are freely fitted into the groove 43, and by which a plurality of operation chambers 47 are formed between the inner circumferential surface of the cylinder 19 and the outer peripheral surface of the piston 17, are provided. The outer diameter of the blade 45 which will be a suction part side region is at least larger than the inner diameter of the cylinder 19.

47. 发明专利

JPH041490A HYDRAULIC COMPRESSOR 失效
公开(公告)号：JPH041490A
公开(公告)日：1992-01-06
申请号：JP9630790
申请日：1990-04-13
申请人： TOSHIBA CORP
发明人： FUJIWARA HISAYOSHI , HONMA HISANORI , SONE YOSHIKUNI , HIRAYAMA TAKUYA
IPC分类号： F04C18/344 , F04C18/107
摘要： PURPOSE:To keep a clearance between a stator and a rotor, constituting a motor element, uniformly by constituting the closed case of a compressor body with a tubular case body and a frame consisting of a cylinder part being inset in the opening end peripheral surface and a disk part closing this cylinder part. CONSTITUTION:A closed case 20 is composed of a tubular case body 21, where at least one end is opened, and a frame 22 closing the opening end surface. In addition, a stator 5 constituting a motor element 3 is attached to an inner peripheral wall of the case body 21, and a rotor 6 constituting the motor element 3 likewise is attached to an outer peripheral surface of a cylinder 7. Moreover, the frame 22 is made up of a cylinder part 23 being inset in the opening end peripheral surface of the case body 21 and a disk part 24 being solidly installed in an intermediate part in the axial direction of this cylinder part 23 and closing it. Thus it is formed in the state that orthogonality between a shaft center of the cylinder part 23 and a seat surface 24a of the disk part 24 has been set in a very accurate manner.

48. 发明专利

JP2000087884A FLUID COMPRESSOR 失效
公开(公告)号：JP2000087884A
公开(公告)日：2000-03-28
申请号：JP26012598
申请日：1998-09-14
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： FUJIWARA HISAYOSHI , HIRAYAMA TAKUYA , ITO TATSUYA , YOSHIDA MASATOSHI , MIZUNO HIROYUKI
IPC分类号： F04C18/344 , F04C18/107
摘要： PROBLEM TO BE SOLVED: To provide a fluid compressor contributing to cost reduction and improving manufacturing performance by selecting shape structure and setting of a blade stopper fitting position. SOLUTION: A fluid compressor is provided with a cylindrical cylinder 5; a pair of bearings for closing both end opening parts of the cylinder 5; a roller 14 eccentrically disposed in a space part formed by the cylinder and the bearings; a spiral blade 18 provided between the roller 14 and the cylinder 5 and formed at a gradually smaller pitch from one end side to the other end side; and a plurality of compression chambers formed between the blade 18, and the cylinder 5 and roller 14. Either one of the cylinder and bearings is provided with a blade stopper 21 for regulating the spiral direction movement of the blade 18.

49. 发明专利

JPH10205473A FLUID COMPRESSOR 失效
公开(公告)号：JPH10205473A
公开(公告)日：1998-08-04
申请号：JP1049497
申请日：1997-01-23
申请人： TOSHIBA CORP
发明人： HIRAYAMA TAKUYA
IPC分类号： F04C18/344 , F04C18/107 , F04C18/30
摘要： PROBLEM TO BE SOLVED: To provide a fluid compressor to reduce incurring of a slide loss at the thrust surface of a roller and improve compression performance and reliability. SOLUTION: A fluid compressor comprises a cylinder 5; a roller 11 eccentricity arranged in a cylinder; and a spiral blade 15 to partition a space between the roller and the cylinder into a plurality of compression chambers 16 along an axial direction. By effecting revolving movement of the roller around the cylinder, fluid to be compressed is sucked to the compression chamber on one end side and compressed and transferred to the compression chamber on the other side. The roller is provided at an end face on the suction side with a thrust ring 50 to receive a thrust force generated in the axial direction of the suction side.

50. 发明专利

JPH1047272A FLUID MACHINERY 失效
公开(公告)号：JPH1047272A
公开(公告)日：1998-02-17
申请号：JP20029696
申请日：1996-07-30
申请人： TOSHIBA AVE KK , TOSHIBA CORP
发明人： HIRAYAMA TAKUYA , TSUNEKAWA TERUHISA
IPC分类号： F04C18/344 , F04B19/12 , F04C18/107
摘要： PROBLEM TO BE SOLVED: To provide a fluid machinery, by which if an operating chamber becomes abnormal high pressure due to any reason, the pressure is surely let escape, the stress applied to a blade can be eliminated to improve the reliability of the blade, and the overcompression state can be surely prevented to contribute to the improvement in performance. SOLUTION: Fluid machinery comprises a helical blade operating mechanism 3 including a cylinder 5, a roller 11 eccentrically disposed in the cylinder, a spiral groove 14 provided along the peripheral surface of the roller, and a helical blade 15 which is fitted in the helical groove in such a manner as to go in and out the helical groove to partition the space up to the cylinder into plural operating chambers 16, wherein the discharge side wall surface of the helical groove is provided with a release passage 20 for letting the pressure escape to the discharge side operating chamber when the pressure in the operating chamber exceeds a designated value.

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