公开(公告)号：JPH0882295A

公开(公告)日：1996-03-26

申请号：JP22062494

申请日：1994-09-14

Applicant: TOSHIBA CORP

Inventor： TSUNODA KAZUHISA ,  YOSHIZAWA HIROYASU

IPC: F04C18/00 ,  F04C18/107 ,  F04C18/344

Abstract: PURPOSE: To improve the compression efficiency of a compressor by decreasing stress concentration applied to a helical blade. CONSTITUTION: A helical groove 17 provided with a pair of spiral groove walls 17a, 17b is formed at the outer periphery 16a of a roller piston 16. In the helical groove 17, a helical blade 18 made of elastic material is formed so as to advance and retreat. A curved surface is formed at the edge part 26 of a low pressure side groove wall 17a. The curved surface is brought into contact with the low pressure side groove wall 17a and the outer periphery 16a of the roller piston 16 in a cross section orthogonal to the helical groove 17, and its radius of curvature is 0.1mm-0.7mm.

公开(公告)号：JPH06257582A

公开(公告)日：1994-09-13

申请号：JP4287293

申请日：1993-03-03

Applicant: TOSHIBA CORP

Inventor： TSUNODA KAZUHISA ,  KAWASHIMA NORITSUGU

IPC: F04C18/107 ,  F04C29/00 ,  F04C29/02 ,  F04C29/12

Abstract: PURPOSE:To surely lubricate sliding portions without making a structure complex by forming a spiral groove in a hydraulic pump mechanism, and forcibly raising lubricating oil utilizing its viscosity, and guiding the oil to the respective sliding portions of a piston and a bearing. CONSTITUTION:A fluid compressor 31 includes a cylinder 35 enclosed in a sealed case 32 having lubricating oil 61 stored therein and a piston 36 disposed with eccentricity inside the cylinder 35, the piston 36 being a columnar rotor. A spiral groove 40 is formed on the outer periphery of the piston 36 and a spiral blade 40a is removably fitted into the groove 40. A stator 52 is secured to the inside of the sealed case 32 and a rotor 53 made of a permanent magnet to be fitted over the cylinder 35 is disposed inside the stator 52. A pump mechanism 55 is secured to one end of the piston 36 and a spiral groove 71 which rotates relative to the rotor 53 is formed in the pump mechanism. An oil hole 58 is formed inside the piston 63 so that the lubricating oil 61 fed by the pump mechanism 55 is forced to flow out into the cylinder 35.

公开(公告)号：JPH04279792A

公开(公告)日：1992-10-05

申请号：JP4364991

申请日：1991-03-08

Applicant: TOSHIBA CORP

Inventor： FUJIWARA HISAYOSHI ,  SHIMODA MORIAKI ,  SONE YOSHIKUNI ,  KAWASHIMA NORITSUGU ,  TSUNODA KAZUHISA

IPC: F04C18/107 ,  F04C29/00 ,  F04C29/02

Abstract: PURPOSE:To surely lubricate the sliding sections of respective compression systems even in a compressor furnished with paired spiral grooves and blades by providing a lubricating means which can feed hydraulic oil to the sliding sections of the respective compression system from one end section or both the end sections of a cylinder. CONSTITUTION:When a cylinder 4 is drivingly rotated with an electric motor section 21 energized, a cylinder 4 and a piston 5 are relatively and synchronously rotated. This operation forces low pressure refrigerant gas to be sucked in along a suction passage 11 from a suction pipe 12 so as to be transferred to a working chamber 10, so that it is thereby compressed. And refrigerant gas is discharged into a hermetic case 2 from respective discharge pipes 14a and 14b, it is then discharged out of the respective discharge pipes 13a and 13b so as to be led to a condenser. In this case, accompanied with the compressive actions of the respective compression systems A and B, lubricant in an oil bank 15 is sucked up in a suck-up pipe 16 so as to be led along a lubricant feed passage 18. Namely, lubricant is fed to the sliding sections of the respective compression systems A and B such as each sliding surface between each spiral groove 8a and 8b and each blade 9a and 9b and the like.

公开(公告)号：JPH033993A

公开(公告)日：1991-01-10

申请号：JP13609389

申请日：1989-05-31

Applicant: TOSHIBA CORP

Inventor： MOROZUMI NAOYA ,  SAKATA KANJI ,  HAYANO MAKOTO ,  HATTORI HITOSHI ,  OKUDA MASAYUKI ,  TSUNODA KAZUHISA ,  AKENO MASANOBU

IPC: F04C18/344 ,  F04C18/107

Abstract: PURPOSE:To perform the preset rotating motion with high reliability and lower the cost by providing an inner gear section on the inner periphery of the end section of a cylinder, and providing an outer bearing section coupled with the inner gear section concentrically with the axis of a piston to constitute a rotating means. CONSTITUTION:When a cylinder 6 or a piston 9 serving as the power input side receives the power and is rotated, an outer gear section 21 and an inner gear section 22 are coupled, the piston 9 or the cylinder 6 serving as the driven side is driven and rotated in the preset relationship, and the rotary motion required for compression is attained. The mechanism using an inner gear mechanism to rotate the piston 9 or the cylinder 6 has no portion with weak rigidity on a main body section like an Oldham's ring although the gear mechanism is also stored in the cylinder 6, and the reliability against a load is high. the components to be used are only the outer gear section 21 and the inner gear section 22, the structure is simple, the number of components can be small, and the cost can be lowered.

公开(公告)号：JP2011069249A

公开(公告)日：2011-04-07

申请号：JP2009219278

申请日：2009-09-24

Applicant: Toshiba Corp ,  Toshiba Kyaria Kk ,  東芝キヤリア株式会社 ,  株式会社東芝

Inventor： ITO YASUTAKA ,  HATTORI HITOSHI ,  TSUNODA KAZUHISA ,  MIURA KAZUHIKO

IPC: F04C18/356 ,  F04C29/00

Abstract: PROBLEM TO BE SOLVED: To provide a rotary compressor inhibiting fatigue breakage of a plate part and inhibiting one-side contact and seizure of a vane. SOLUTION: The rotary compressor includes a drive part 13 driving a rotating shaft 16 and a compressor body 14 connected to the rotating shaft 16, which are contained inside a casing 15. The compressor body 14 comprises a cylinder 18 provided inside the casing 15, a rolling piston 19 provided to eccentrically rotate in the cylinder 18 and bearings 21, 22 provided on the upper end face and the lower end face of the cylinder 18. The cylinder 18 is provided with a vane groove 27, in which the vane 31 is inserted and divides a compression chamber 23 formed by the cylinder 18, the rolling piston 19 and the bearings 21, 22 into two, and a slit 28. The slit 28 is formed so that an angle defined by a straight line connecting the center of a side face on a vane groove side of the slit 28 and the center of the cylinder 18 and by the axis of the vane groove 27 is not smaller than 9° and not larger than 14°. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种抑制板部的疲劳断裂并抑制叶片的单面接触和卡死的旋转压缩机。 解决方案：旋转压缩机包括驱动旋转轴16的驱动部13和连接到旋转轴16的压缩机体14，压缩机体14容纳在壳体15内。压缩机体14包括设置在壳体内的气缸18 如图15所示，设置在气缸18中偏心旋转的滚动活塞19和设置在气缸18的上端面和下端面上的轴承21,22。气缸18设有叶片槽27，叶片槽 31插入并将由缸18，滚动活塞19和轴承21,22形成的压缩室23分成两部分和狭缝28.狭缝28形成为由连接中心的直线限定的角度 在狭缝28的叶片槽侧的侧面和圆筒18的中心，并且通过叶片槽27的轴线不小于9°并且不大于14°。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JPH10243613A

公开(公告)日：1998-09-11

申请号：JP3779797

申请日：1997-02-21

Applicant: TOSHIBA CORP

Inventor： HIRAOKA TAKAFUMI ,  YOSHII YASUO ,  TSUNODA KAZUHISA

IPC: B60P3/00 ,  B60P7/16 ,  H02K13/00

Abstract: PROBLEM TO BE SOLVED: To provide an abrasion suppressor which can reduce sliding contact or sliding between metals, abrasion and damage of contact members, and also provide a transported and a DC motor using the abrasion suppressor. SOLUTION: A load-carrying platform of a truck 41 is provided with a magnetic field generator 58 which is made by locating a single or a plurality of permanent magnets 56, 57 above and below plurality of fuel aggregates 45 which are horizontally supported by supporting frames 46a, 46b, 46c, 46d, 46e during transportation. Magnetic fields generated by the field generator 58 are supposed to cross at right angles at a specified intensity at the contacts between metals formed in the fuel aggregates 45, the supporting frames 46a,..., 46e and other sections, for example, a contact between an end closure of a nuclear reactor fuel bar and a supporting plate for supporting the fuel bar, a contact between the supporting plate and the supporting frame 46a, and a contact between the supporting plate and the supporting frame 46e. By this method, contact or adhesion between newly produced faces in the contact between metals can be reduced and, at the same time, abrasive power of an oxide film generated at the contact due to sliding of metals on each other can be made finer, thereby reducing abrasion.

公开(公告)号：JPH10103266A

公开(公告)日：1998-04-21

申请号：JP25952396

申请日：1996-09-30

Applicant: TOSHIBA CORP

Inventor： YOSHIZAWA HIROYASU ,  TSUNODA KAZUHISA ,  SHIMODA MORIAKI

IPC: F04C29/00 ,  F04C18/107 ,  F04C18/344

Abstract: PROBLEM TO BE SOLVED: To improve the reliability of a helical blade type compressor and increase its capacity by supporting compression load which acts on a blade on both sides of an inner peripheral face of a cylinder and an outer peripheral face of a piston. SOLUTION: A spiral cylinder groove 10 formed in such a manner that a part of a blade 3 can be inserted is provided on an inner peripheral face of a cylinder 1. The blade 3 comes in and out of a piston groove 4 formed mainly on an outer surface of a roller piston 2 while a compressor is operated, but a part thereof is inserted into the cylinder groove 10 formed on an inner surface of the cylinder 1. Consequently, even when the blade 3 is pressed from a compression chamber 6b on a high pressure side to a compression chamber 6a on a low pressure side due to, for example, a difference in pressure, load due to the difference in pressure which acts on the blade 3 can be supported by both of the spiral piston groove 4 and cylinder groove 10, namely, on both sides of the blade 3. As a result, it is possible to reduce the concentration of stress in a contact part of the piston groove 4 and the cylinder groove 10 of the blade 3.

公开(公告)号：JPH0539789A

公开(公告)日：1993-02-19

申请号：JP356992

申请日：1992-01-13

Applicant: TOSHIBA CORP

Inventor： TSUNODA KAZUHISA

IPC: F04C18/107 ,  F04C18/344

Abstract: PURPOSE:To improve the durability of a helical blade in a compressor formed by incorporating the helical blade in a compression mechanism. CONSTITUTION:A helical blade 9 demountably mounted in a helical groove 7 formed in the outer peripheral surface of a roller piston 6 is formed into cross section dimension being satisfied with (1+mu ) (alpha/beta) +2 TL-L )/2+[-B (1--mu )+muBT+mu TL]/(1-mu ). beta=T-L+[muB (1+mu +2mu(muT-B)]/(1-mu ).

公开(公告)号：JPH04209984A

公开(公告)日：1992-07-31

申请号：JP34028990

申请日：1990-11-30

Applicant: TOSHIBA CORP

Inventor： KAWASHIMA NORITSUGU ,  TSUNODA KAZUHISA

IPC: F04C18/107

Abstract: PURPOSE:To operate a compressor safely and stably by forming at least either one of a cylinder and a roller piston in rotational unbalance to increase the primary natural frequency of a rotational system. CONSTITUTION:In a compression mechanism 3 in which a helical blades 9 forming a compressive spaces 8, of which volume becomes smaller as they extend to the left side, between the inner surface of cylinder 5 and the blades 9 are provided protrudably in helical grooves 7 which are formed in the outer periphery of a roller piston 6 so that their pitches become smaller as they extend to the left side, unbalance mass 21a and 21b to give mass unbalance to a rotational system comprising the cylinder 5 and a rotator 19 is provided at both ends of the cylinder 5. Thus the primary natural frequency of a rotating unit can be increased to run the compressor stably at a speed ranging from a low to sufficiently high speed.

公开(公告)号：JPH02291491A

公开(公告)日：1990-12-03

申请号：JP1794990

申请日：1990-01-30

Applicant: TOSHIBA CORP

Inventor： HONMA HISANORI ,  SONE YOSHIKUNI ,  FUJIWARA HISAYOSHI ,  FUKUDA TETSUO ,  KAWASHIMA NORITSUGU ,  TSUNODA KAZUHISA ,  ICHIKAWA TSUTOMU

IPC: F04C18/344 ,  F01C21/08 ,  F04C18/107

Abstract: PURPOSE:To reduce the number of parts and to improve intensity by inserting a helical blade composed of a fluorine resinous material of a specified composition in a groove of a roller piston pivotally supported in a sleeve-shaped cylinder, for free rising and setting, so as to construct a compressor part. CONSTITUTION:In a compressor, an electric motor part 11 and a compressor part 12 are stored in a concentric circle in a closed casing 10. For the compressor part 12, at an eccentric position in a sleeve-shaped cylinder 15, a rod-like roller piston 16 is supported for free rotation, and a helical blade 18 is inserted into a helical groove of the roller piston 16 for free rising and setting. The helical blade 18 is formed out of a fluorine resinous material filled with at least one species out of a heat-resistant polymeric material such as polyimide, polyamideimide, polyether etherketone, etc., a liquid crystal polymer such as aromatic polyamide, aromatic polyether, etc., as a reinforcing material or as an abrasion resistant material.