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111. 发明专利

JP2560857B2 失效
公开(公告)号：JP2560857B2
公开(公告)日：1996-12-04
申请号：JP24956689
申请日：1989-09-26
申请人： DAIKIN IND LTD
发明人： SHIBAMOTO YOSHITAKA , TAKANO SACHIO , HIGUCHI YORIHIDE
IPC分类号： F04C18/02

112. 发明专利

JPH07151089A COMPRESSOR 失效
公开(公告)号：JPH07151089A
公开(公告)日：1995-06-13
申请号：JP30184593
申请日：1993-12-01
申请人： DAIKIN IND LTD
发明人： HIGUCHI YORIHIDE , TAKADA YASUSHI , SHIBATA HITOSHI , KITAGAWA KOYO , KISHIMA HIROSHI
IPC分类号： F04C29/02 , F04C2/10 , F04C18/02
摘要： PURPOSE:To enable check to be carried out beforehand even if driving torque is increased by size failure, assembling failure and the like of an oil feeding pump by carrying out torque check of a driving shaft after the oil feeding pump is installed when a volumetric oil feeding pump is installed in a compressor. CONSTITUTION:A pump cover 8 which is provided with a shaft hole 81 and a discharging port 82 for eliminating drawing-out of a volumetric pump element 6 from a pump case 7 is installed on the pump case 7 in which the volumetric pump element 6 is interposed. A projection shaft part 32 projecting to the outside of the pump cover 8 through the shaft hole 81 of the pump cover 8 is provided on a driving shaft 3. A driving shaft cover 9 for covering the discharging port 82 of the pump cover 8 and the projection shaft part 32 of the driving shaft 3 and for forming an oil discharging chamber 91 for receiving oil which is discharged from the volumetric pump element 6 and for leading the oil to the oil feeding passage 31 of the driving shaft 3, is installed on the outside of the pump cover 8.

113. 发明专利

JPH07139483A SCROLL COMPRESSOR 失效
公开(公告)号：JPH07139483A
公开(公告)日：1995-05-30
申请号：JP28952193
申请日：1993-11-18
申请人： DAIKIN IND LTD
发明人： HIGUCHI YORIHIDE , TAKADA YASUSHI , SHIBATA HITOSHI , KITAGAWA KOYO , MURATA NOBORU
IPC分类号： F04C29/02 , F04C18/02
摘要： PURPOSE:To keep the airtightness between respective compression chambers by feeding the oil of required optimum amount into the respective compression chambers of the compression element while the back pressure by the high pressure oil is imparted to the center of the back surface of a movable scroll, and the deflective deformation of the scroll is prevented by dispensing with troublesome work, reducing the number of part items at a low cost. CONSTITUTION:A scroll compression is provided with an injection clearance 13 to flow the oil to be fed from an oil feeding pump P to a back pressure chamber 12 to the low pressure side of a compression element 2 between the outer circumferential surface on the low pressure side of a seal ring 11 arranged to form the back pressure chamber 12 and the inner circumferential surface of a storing part 51 opposite to the outer circumferential surface in the seal ring housing part 51 of a bearing housing 5.

114. 发明专利

JPH07133771A HIGH PRESSURE DOME TYPE COMPRESSOR 失效
公开(公告)号：JPH07133771A
公开(公告)日：1995-05-23
申请号：JP27966993
申请日：1993-11-09
申请人： DAIKIN IND LTD
发明人： HIGUCHI YORIHIDE , TAKADA YASUSHI , SHIBATA HITOSHI , KITAGAWA KOYO , TAAZE YOSHITO
IPC分类号： F04C18/02
摘要： PURPOSE:To prevent deterioration of compression capacity in a high pressure dome type compressor by restraining overheat of the suction gas fluid in a suction pipe through the discharge gas fluid in a discharge chamber, although the suction pipe is passed through the discharge gas fluid territory of high temperature and high pressure in the discharge chamber and connected to a suction port. CONSTITUTION:A joint pipe 6 is penetratingly provided on the opposite part position to a suction port 23 on one end side in the longitudinal direction of a closed casing 1, an inlet tube 5 connected to a suction pipe 3 is internally provided in the joint pipe 6, the extreme end side of the inlet tube 5 is airtightly fitted to the suction port 23, meanwhile the joint pipe 6 is extended in the vicinity of a compression element 2, and a buffer space 7 is formed between the joint pipe 6 and the inlet tube 5.

115. 发明专利

JPH05296167A 失效
公开(公告)号：JPH05296167A
公开(公告)日：1993-11-09
申请号：JP10299092
申请日：1992-04-22
申请人： DAIKIN IND LTD
发明人： HIGUCHI YORIHIDE
IPC分类号： F04C18/02
摘要： PURPOSE:To enable compactness by making the diameter of a movable scroll small without reducing compression capacity. CONSTITUTION:A movable scroll 2 is pressed to a fixed scroll 1, and the fixed scroll 1 is provided with a thrust face 15. The base circle center Y2 in the spiral body 22 of the movable scroll 2 is decentered from the end plate center Y1 of the movable scroll 2 in such a way that the distance L1 is approximately equal to the distance L2, and the outer diameter RA of the movable scroll 2 is made smaller by the half of the pitch 2piRg than an existing example.

116. 发明专利

JPH051682A SCROLL TYPE FLUID MACHINE 失效
公开(公告)号：JPH051682A
公开(公告)日：1993-01-08
申请号：JP15698291
申请日：1991-06-27
申请人： DAIKIN IND LTD
发明人： HIGUCHI YORIHIDE
IPC分类号： F04C18/02 , F04C23/00 , F04C28/20 , F04C29/02 , F04C29/12
摘要： PURPOSE:To reduce the deflection of a stationary scroll as well as to make it simple to form an oil feed passage to a fluid operating chamber by communicating the chamber with an oil sump within a casing with each other by the use of an oil passage furnished with a squeezing section, and concurrently communicating the bottom section of the chamber with the fluid operating chamber in an intermediate pressure range by the use of an oil feed path. CONSTITUTION:A chamber 7 at the back face of a stationary scroll 2 is communicated with a high pressure oil pump 97 within a hermetic casing 1 through an oil passage 6 furnished with a section squeezed by a main bearing 5. The chamber 7 is concurrently communicated with a fluid operating chamber 4 in an intermediate pressure range through an oil feed path 70. The inner pressure of the chamber 7 is maintained at the pressure which is decreased by a decrement equivalent to the passage squeezed by the main bearing 5 against high pressure, that is, at the intermediate pressure close to pressure within the operating chamber 4, oil is thereby introduced to the chamber 7 out of the oil sump 97, so that oil is therefore fed into the operating chamber 4 from the bottom section of the chamber 7 through the oil feed path 70. In this case, since pressure at the back face side of the scroll 2 falls in the intermediate pressure range, energizing force from the back face is prevented from being excessive, deformation due to the deflection of the scroll 2 can thereby be reduced.

117. 发明专利

JPH03134286A SCROLL TYPE FLUID DEVICE 失效
公开(公告)号：JPH03134286A
公开(公告)日：1991-06-07
申请号：JP27218889
申请日：1989-10-18
申请人： DAIKIN IND LTD
发明人： TAKANO SACHIO , FUJIMOTO SATORU , SHIBAMOTO YOSHITAKA , HIGUCHI YORIHIDE , AIURA TETSUO
IPC分类号： F04C18/02
摘要： PURPOSE:To attempt improvement in volumetric efficiency by installing a fluid suction passage at one position, setting the laps of a fixed and revolving scrolls in such a way that the respective end edges of winding may be positioned adjacent to the opening of the fluid suction passage to lead fluid into a compressor chamber directly for restraining thermal expansion. CONSTITUTION:Both laps 7b, 8b are engaged with each other so that the lap 7b of a fixed scroll 7 may locate outside the lap 8b of a revolving scroll 8. On the other hand, the lap 7b of the scroll 7 is extended more than the lap 8b of the scroll 8 by a roughly half rotation to be formed so that the winding end edges 7h, 8h of both laps 7b, 8b may be roughly in the same position. Besides, respective winding end edges 7h, 8h are disposed so that they may come close to the opening part 5b of a cooling medium suction passage 5a, and fluid intake passages 7j, 8j are formed in the winding end edges 7h and 8h of the laps 7b, 8b toward the other laps 7b, 8b. Therefore, cooling medium sucked from the cooling medium suction passage 5a is quickly led into compressor chambers 3a, 3a through the respective intake passages 7j, 8j for a compression action without being heated.

118. 发明专利

JPH03105093A SCROLL TYPE FLUID MACHINE 失效
公开(公告)号：JPH03105093A
公开(公告)日：1991-05-01
申请号：JP24298389
申请日：1989-09-18
申请人： DAIKIN IND LTD
发明人： TAKANO SACHIO , HIGUCHI YORIHIDE , SHIBAMOTO YOSHITAKA
IPC分类号： F01C1/02 , F01C21/04 , F04C18/02
摘要： PURPOSE:To supply a sufficient quantity of oil even in low revolution by extending a pressurized oil feeding passage due to a centrifugal force outward in the radial direction of a driving shaft from the upper part gap of the fitting part between a scroll boss hole and an eccentric shaft part and opening said oil passage outward in the radial direction. CONSTITUTION:An L-figure-shaped pressurized passage 64 extending outward in the radial direction through the inside of an eccentric shaft part 61 from the upper edge surface of the eccentric shaft part 61 opposed to the upper gap S in the fitting part between the eccentric shaft part 61 and a boss hole 32 is formed, and it is opened to the outer peripheral wall surface which forms the max. outside diameter of a balance weight 8 which is set eccentrically outward from the outside diameter of a driving shaft 6. In accordance with the rotational drive of the driving shaft 6, a sufficient head due to the eccentric force is generated in the pressurized passage 64, and a pumped-up oil quantity, in an oil supply passage 62 which is pumped up from an oil reservoir 1a to the upper gap S in a negative pressure region is increased. Even if the driving shaft 6 is rotated at a low speed, a sufficient quantity of oil can be pumped up into the oil supply passage 62.

119. 发明专利

JPH03105089A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH03105089A
公开(公告)日：1991-05-01
申请号：JP24298189
申请日：1989-09-18
申请人： DAIKIN IND LTD
发明人： SHIBAMOTO YOSHITAKA , TAKANO SACHIO , HIGUCHI YORIHIDE
IPC分类号： F01C1/02 , F04C18/02
摘要： PURPOSE:To reduce the leak of the compressed fluid and suppress the deterioration of performance by opening the outer position of a radial direction groove which communication to the peripheral direction groove of a thrust bearing surface to a back surface chamber through the outer peripheral edge part on the end plate of the second scroll. CONSTITUTION:The communication period in which a radial direction groove 6 is opened to a back surface chamber through the outer peripheral edge part 20 of the end plate 21 of the second scroll 2 and an intermediate compression chamber M communicates to the back surface chamber and the shielding period for shielding communication by blinding the radial direction groove 6 by the end plate 21 are developed by adjusting the length of the radial direction groove 6 in straight line form which communicates to a circumferential direction groove 5. Further, the communication period and the shielding period can be changed freely by adjusting the length of the radial direction groove 6, and the leak quantity of the compressed fluid supplied from the intermediate compression chamber M can be reduced by limitting the communication period to the degree necessary for keeping the back surface chamber at an intermediate pressure.

120. 发明专利

JPH0396679A SCROLL TYPE FLUID MACHINE 失效
公开(公告)号：JPH0396679A
公开(公告)日：1991-04-22
申请号：JP23247889
申请日：1989-09-07
申请人： DAIKIN IND LTD
发明人： TAKANO SACHIO , HIGUCHI YORIHIDE , SHIBAMOTO YOSHITAKA
IPC分类号： F01C1/02 , F04C18/02 , F04C29/12
摘要： PURPOSE:To prevent the exhaust of the fluid owing to a reverse flow and to improve the compression efficiency by providing a suction valve to allow only the fluid flowing to a compression chamber formed between scroll bodies, to a suction passage provided at the winding end side of the scroll bodies in two scrolls. CONSTITUTION:In two scrolls 4 and 5, scroll bodis 3a and 3b projecting from one side surface of panels are geared each other. And at least one of the scrolls 4 and 5 is linked and connected to a driving shaft. In such a composition, at the suction passages 8 at the winding end side in the scroll bodies 3a and 3b, suction valves 9 to allow only the flowing to compression chambers X formed between the scroll bodies 3a and 3b are provided. And the reverse flow of the fluid scroll-absorbed into the compression chambers X and the releasing to the outside are prevented by the suction valves 9. Consequently, the volume of the absorbed fluid in the compression chambers X is increased substantially, and the compression efficiency is improved.

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