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11. 发明专利

JPH06173870A FLUID COMPRESSOR 失效
公开(公告)号：JPH06173870A
公开(公告)日：1994-06-21
申请号：JP32564592
申请日：1992-12-04
申请人： TOSHIBA CORP
发明人： FUJIWARA HISAYOSHI , OKUDA MASAYUKI , MOTOKATSU TAKASHI
IPC分类号： F04C18/107
摘要： PURPOSE:To provide a fluid compressor capable of reducing an influence of the deformation of a frame part being welded which is exerted on a slide portion between a rotor and bearing member. CONSTITUTION:A piston 9 is eccentrically disposed in a cylinder 8 received in an enclosed case 2. A blade 11 is fitted in a spiral groove 10 on the piston 9. A main bearing 18 is inserted in the cylinder 8. A spindle part 22 of the piston 9 is inserted in the main bearing 18. While the cylinder 8 and piston 9 are rotated relative to each other to transfer working fluid from the suction side of the cylinder 8 to the discharge side, the working fluid is compressed. While the enclosed case 2 is composed of a case body 13 opened in at least one axial end and a frame part 14 welded to the case body 13 to close the case body 13, the frame part 14 has a disk part 15 provided with the main bearing 18 integrally projecting therefrom, and the position of a slide portion 45 between the main bearing part 22 and main bearing 18 is deviated from the disk part 15.

12. 发明专利

JPH0633882A FLUID COMPRESSOR 失效
公开(公告)号：JPH0633882A
公开(公告)日：1994-02-08
申请号：JP18835792
申请日：1992-07-15
申请人： TOSHIBA CORP
发明人： FUJIWARA HISAYOSHI
IPC分类号： F04C18/107
摘要： PURPOSE:To obtain a fluid compressor which can keep the position of a subbearing with high pecision and prevents the leak of an adhesive to the periphery and with which workability can be improved, in the bonding work for fixing the position after the position adjustment for the subbearing. CONSTITUTION:A supporting plate 8 is installed in a sealed case 2, and a subbearing 9 is supported on the supporting plate through an Oldham's ring 16, and the position of the subbearing 9 is fixed by an adhesive which is poured after the position adjustment by the Oldham's ring 16, and a projecting bank part 19 for suppressing the outside flow-out through storing the adhesive (a) is installed on the supporting plate 8.

13. 发明专利

JPH05223077A FLUID COMPRESSOR 失效
公开(公告)号：JPH05223077A
公开(公告)日：1993-08-31
申请号：JP2371692
申请日：1992-02-10
申请人： TOSHIBA CORP
发明人： FUJIWARA HISAYOSHI , FUKUDA TETSUO
IPC分类号： F04C18/107 , F04C29/00
摘要： PURPOSE:To improve axial accuracy in a bearing member in a horizontal fluid compressor having a cylindrical rotor provided with a spiral blade fitted therein and disposed in a cylinder by composing an enclosed case of a case barrel and a cylindrical bottomed frame part provided integrally with the bearing member. CONSTITUTION:A horizontal fluid compressor 31 accommodates a compression mechanism section in an enclosed case 32 and a motor for driving the section. The compression mechanism section is composed of a cylinder 8 having both ends opened and a piston of a cylindrical rotor fitted in the cylinder and having a spiral blade fitted slidably on the outer periphery with longitudinally changed pitch. Then, the enclosed case 32 is composed of a case barrel 33 having one axial end opened and a frame part 35 fitted into the opening 34 and formed integrally with a disk part 36 provided projectingly with a main bearing 38 in a predetermined position and a flange part 37. And the main bearing 38 of a frame part 35 supports one end of the cylinder and the flange part 37 is fitted in the case barrel 33.

14. 发明专利

JPH05223076A FLUID COMPRESSOR 失效
公开(公告)号：JPH05223076A
公开(公告)日：1993-08-31
申请号：JP2371592
申请日：1992-02-10
申请人： TOSHIBA CORP
发明人： FUJIWARA HISAYOSHI , OKUDA MASAYUKI
IPC分类号： F04C18/107 , F04C29/02
摘要： PURPOSE:To improve oiling performance by disposing a cylindrical rotor having a spiral blade fitted in the outer periphery with longitudinally changed pitches and the axis directed vertically in a cylinder and providing an oil pump immersed in oil on the lower and of the rotor. CONSTITUTION:A vertical fluid compressor 31 having the axis of an enclosed case 32 directed vertically accommodates a compression mechanism section 33 in the enclosed case 32 and DC brushless motor 34 for driving the same. The compression mechanism section 33 is composed of a cylinder 35 having both ends opened and a piston 36 of a cylindrical rotor fitted slidably in the cylinder and having a spiral blade 40a fitted in the outer periphery of the rotor with longitudinally changed pitches. The piston 36 is supported rotatably by main and auxiliary bearings 42, 48 on the upper and lower portions of the cylinder 35. A conical receptacle-shaped oil feeding pump 55 is provided on an auxiliary shaft 39 at the lower end of the piston 36 so that oil pumped up by driving the pump 55 is supplied through an oil hole 58 or the like to slidable parts.

15. 发明专利

JPH055489A FLUID COMPRESSOR 失效
公开(公告)号：JPH055489A
公开(公告)日：1993-01-14
申请号：JP18371291
申请日：1991-06-28
申请人： TOSHIBA CORP
发明人： FUJIWARA HISAYOSHI , SONE YOSHIKUNI , HONMA HISANORI
IPC分类号： F04C18/107 , F04C18/344
摘要： PURPOSE:To prevent a gas leak by providing each blade stopper in suction and delivery sides respectively protruded into a cylinder, and arranging the one blade stopper in a motor axial directional outside, forming a delivery hole of connecting the inside and outside of the cylinder, and the other blade stopper in a rotor inside, in a fluid compressor for a refrigerating cycle. CONSTITUTION:In a compressor 41, suction and delivery side blade stoppers 119, 50, having a step difference respectively in the periphery, are inserted toward the inside from the outside of a cylinder 5 and provided protruded in a diametric direction thereof. The suction side blade stopper 49 is protruded into a suction chamber 19 and also arranged in an axial directional inside of a rotor 15 of a motor 4. The delivery side blade stopper 50 is protruded to a delivery chamber 20 of the cylinder 5 further arranged in an axial directional outside of the motor 4 and also forming a delivery hole 53 to form a differential fluid passage for connecting the delivery chamber 20 to the outside of the cylinder 5.

16. 发明专利

JPH0460185A FLUID COMPRESSOR 失效
公开(公告)号：JPH0460185A
公开(公告)日：1992-02-26
申请号：JP16990790
申请日：1990-06-29
申请人： TOSHIBA CORP
发明人： FUJIWARA HISAYOSHI , IIDA TOSHIKATSU , HONMA HISANORI , SONE YOSHIKUNI
IPC分类号： F04C2/30 , F04C18/107
摘要： PURPOSE:To maintain clearance accuracy high between a rotary unit and a cylinder so as to obtain high compression efficiency by interposing an elastic unit between a rotary unit shaft part and a bearing tool internal peripheral surface and setting a position of the rotary unit to an eccentric position relating to an axial center of the cylinder. CONSTITUTION:A compression element 23, driven by an electric motor element 22 comprising an annular stator 24 fixed to an internal surface of a closed case 21 and an annular rotor 25, has a cylinder 26, and its both ends are rotatably pivotally supported to a main bearing 27 and a subbearing 28. A column-shaped piston 29, serving as a rotary unit, is housed along an axial direction, but a center axis B of this piston 29 is arranged eccentrically by a predetermined distance (e) relating to a center axis of the cylinder 26. Here, a position of the piston 29 is set to an eccentric position relating to the axial center A of the cylinder 26 by interposing springs 31..., which are elastic units, between each internal diametric hole 27a, 28c of the main/subbearings 27, 28 and sleeves 30a, 30b fitted with a play into both shaft parts 29a, 29a in both ends of the piston 29.

17. 发明专利

JPH03233183A FLUID COMPRESSOR 失效
公开(公告)号：JPH03233183A
公开(公告)日：1991-10-17
申请号：JP9843390
申请日：1990-04-13
申请人： TOSHIBA CORP
发明人： SONE YOSHIKUNI , AIKAWA HIDEKAZU , FUJIWARA HISAYOSHI , HONMA HISANORI , HIRAYAMA TAKUYA
IPC分类号： F04C18/107
摘要： PURPOSE:To prevent generation of a friction loss caused by displacement of a delivery side bearing member, by providing a supporting mechanism part which comprises a supporting member fixed to a closed case and a holding member for slidably holding a sub-bearing. CONSTITUTION:In a fluid compressor 1, a delivery side end part of a cylinder 4 in a compression mechanism part 3 is externally fitted to a sub-bearing 9, as a delivery side bearing member, held through a supporting mechanism part 21. In the supporting mechanism part 21, a suction side of the compression mechanism part 3 is supported in a closed case 2. The supporting mechanism part 12 is provided with a stopper screw 22 screwed into the sub-bearing 9, supporting plate 23 serving as a supporting member and a stopper tool 24 serving as a holding member. Thus by the supporting mechanism part, generation of a friction loss caused by displacement of the delivery side bearing member can be prevented by preventing the member from being displaced to a side of a suction side bearing member due to unbalanced force.

18. 发明专利

JPH03199690A FLUID COMPRESSOR 失效
公开(公告)号：JPH03199690A
公开(公告)日：1991-08-30
申请号：JP33752389
申请日：1989-12-26
申请人： TOSHIBA CORP
发明人： HONMA HISANORI , FUJIWARA HISAYOSHI , SONE YOSHIKUNI
IPC分类号： F04C18/344 , F04C18/107
摘要： PURPOSE:To stabilize the motion of a blade and also to prevent the shifting movement of the blade by providing a hook-shaped groove in one part of a spiral blade groove, and providing on the blade a hook-shaped portion, which obstructs the shifting movement of the blade along the blade groove. CONSTITUTION:A hook-shaped portion 14 is formed on the outer circumference of a piston 8 and is arranged at the suction side end of a blade groove 11 and further, the hook-shaped portion is inserted in a hook-shaped groove 18 which is continued to a blade groove 11 and opened. In the case when the blade 12 is apt to move along the blade groove 11 to the suction side or a discharge side, the hook-shaped portion 14 of the blade 12 is abutted to the wall of the hook-shaped groove 18 to be locked to the piston 8. Consequently, the shifting movement of the blade 12 in a direction along the blade groove 11 can be restrained and blocked so that the motion of the blade 12 can be stabilized. In this manner, the performance and the durability of a compressor can be stabilized.

19. 发明专利

JPH03199689A FLUID COMPRESSOR 失效
公开(公告)号：JPH03199689A
公开(公告)日：1991-08-30
申请号：JP33752289
申请日：1989-12-26
申请人： TOSHIBA CORP
发明人： FUJIWARA HISAYOSHI , HONMA HISANORI , SONE YOSHIKUNI
IPC分类号： F04C18/344 , F04C18/107
摘要： PURPOSE:To decrease thrust force so as to reduce frictional loss by forming a suction side shaft potion and a discharge side shaft portion on respective ends, in an axial direction, of a rotary body, and setting the sectional area of the suction side shaft portion smaller than that of the discharge side shaft portion. CONSTITUTION:A rotary body 4 wound by spiral blades 5 and a cylinder 3 eccentrically disposing the rotary body 4 therein are rotated relatively. A suction side shaft portion 16 and a discharge side shaft portion 17 are formed at respective ends, in an axial direction, of the rotary body 4. The sectional area of the suction side shaft portion 16 is set smaller than that of the discharge side shaft portion 17. In this manner, thrust force generated from the differential pressure between suction pressure and discharge pressure is made small and also frictional loss can be reduced.

20. 发明专利

JPH02201086A FLUID COMPRESSOR 失效
公开(公告)号：JPH02201086A
公开(公告)日：1990-08-09
申请号：JP2109689
申请日：1989-01-31
申请人： TOSHIBA CORP
发明人： MOROZUMI NAOYA , SAKATA KANJI , HAYANO MAKOTO , HATTORI HITOSHI , OKUDA MASAYUKI , FUJIWARA HISAYOSHI , SHIMODA MORIAKI
IPC分类号： F04C18/344 , F04C18/107
摘要： PURPOSE:To reduce sliding loss of a blade and cylinder together of a fluid compressor, in which a rotor with a spiral blade fitted in a spiral groove formed at the periphery is fitted in a cylinder, by setting the length of the spiral groove to a magnitude which allows relative revolution of blade with the rotor. CONSTITUTION:A stator 5 of an electromotive element 3 is fixed to the inner surface of an enclosed case 2, and a cylinder 7 is fitted on a rotor 6 arranged inside thereof, wherein the two ends are supported rotatably by bearings 8, 9. A piston 11 is fitted in this cylinder 7 as a rotating element eccentrically in an amount (e). This piston 11 is provided at its periphery with a spiral groove 19 reducing its pitch from the suction side gradually toward the discharge side, and a spiral blade 21 is fitted in this groove 19 in such a way that it can advance and retreat freely. Therein the length of the spiral groove 19 shall be greater than the overall length of the blade 21 to permit formation of a play G between the end of the groove 19 and the end of blade 21 in such a magnitude as admits revolving motion of blade 21 with respect to the piston 11.

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