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81. 发明专利

JPH07127590A SCROLL COMPRESSOR 失效
公开(公告)号：JPH07127590A
公开(公告)日：1995-05-16
申请号：JP27659993
申请日：1993-11-05
申请人： DAIKIN IND LTD
发明人： TAKADA YASUSHI , HIGUCHI YORIHIDE , SHIBATA HITOSHI , KITAGAWA KOYO , MURATA NOBORU
IPC分类号： F04C18/02 , F04C29/02
摘要： PURPOSE:To prevent the wear, the seizure or the like on a bearing part side by making sufficient use of the centrifugal force to be generated when a driving shaft is rotated to surely supply oil to the bearing part of a bearing housing to support a cylindrical transmission part of the driving shaft. CONSTITUTION:A main oil supply passage 11 provided in a driving shaft 6 is opened in a cylindrical transmission part 61 provided in the driving shaft 6, and an oil supply passage 12 for the bearing which is branched from the main oil supply passage is provided in a continuous part 62 of the cylindrical transmission part 61 continuous to the end part on a movable scroll side of the driving shaft 6, and the oil supply passage 12 for the bearing is opened to a bearing part 91.

82. 发明专利

JPH051683A HIGH PRESSURE DOME TYPE COMPRESSOR 失效
公开(公告)号：JPH051683A
公开(公告)日：1993-01-08
申请号：JP15698491
申请日：1991-06-27
申请人： DAIKIN IND LTD
发明人： HIGUCHI YORIHIDE
IPC分类号： F04C18/02 , F04C29/02 , F04C29/12
摘要： PURPOSE:To positively enable oil separation in a simple configuration, and thereby enhance oil separation efficiency by providing vane leaves for the outer circumference of an extension section provided beyond the support section of the upper bearing of a drive shaft, and thereby projecting a discharge pipe open section within a recessed section provided in the inner circumference of the rotating range of the shaft. CONSTITUTION:An extension section 30 extended beyond the support section of an upper bearing 6, is provided for the upper section of a drive shaft 3, The vane body 7 is provided, in which a certain number of vane leaves 71 is arranged in a radial direction along the outer circumference of the extension section 30, and the open section of a discharge pipe 9 is concurrently projected in the inside of a recessed section 8 provided in the inner circumferential section within the rotating range of the vane body 7. In the second place, discharge gas containing a part of discharge oil out of a compression element 2 flows out of the upper space of a motor 4 while passing through releasing posts 64 as a compressor is operated, and it is hit against the vane body 7 rotated together with the drive shaft 3 so as to be tuned, so that oil whose specific gravity is high in gas, is blown outside by means of centrifugal force so as to be recovered in an oil sump 52 out of a discharge port 65 through a corecut 43. On the other hand, gas containing no oil is drawn out of the recessed section 8 located in the inner circumferential side of the rotating range of the vane body 7 to the discharge pipe 9.

83. 发明专利

JPH051501A SCROLL TYPE FLUID MACHINE 失效
公开(公告)号：JPH051501A
公开(公告)日：1993-01-08
申请号：JP15698391
申请日：1991-06-27
申请人： DAIKIN IND LTD
发明人： HIGUCHI YORIHIDE
IPC分类号： F01C1/02 , F04C18/02 , F04C29/00 , F04C29/02 , F04C29/04
摘要： PURPOSE:To prevent excessive oil infection to a fluid actuation chamber so as to avoid oil compression, and maintain a sealability in the actuation chamber good in a simple structure without using a capillary tube. CONSTITUTION:A bottom part of an oil sump 97 is opened in a shaft bearing part 5 for supporting a crank shaft 93 through a supply oil passage 5, an oil groove 51 extending along the shaft in the inner surface of the shaft bearing part 5 is provided, the oil groove 51 is connected with a fluid actuation chamber 4 in a middle pressure zone through an oil injection passage 7, and the oil sump 97 at a high pressure is connected with the fluid actuation chamber 4 at a middle pressure through a small bearing gap at the bearing part 5, thereby an injection oil quantity to the fluid actuation chamber 4 is limited.

84. 发明专利

JPH04370382A SCROLL TYPE FLUID MACHINE 失效
公开(公告)号：JPH04370382A
公开(公告)日：1992-12-22
申请号：JP14604091
申请日：1991-06-18
申请人： DAIKIN IND LTD
发明人： HIGUCHI YORIHIDE
IPC分类号： F01C1/02 , F04C18/02 , F04C28/28 , F04C29/00
摘要： PURPOSE:To prevent damage of a volute body of each scroll by well relieving an abnormal high pressure, generated in a fluid action chamber, to a low pressure side with constitution simplified and miniaturized. CONSTITUTION:A ring body 4, energized by a belleville spring 7, is arranged in a reverse surface of a movable scroll 2 to place its internal peripheral side appearing in a high pressure side action chamber 51 and peripheral side appearing in a low pressure side action chamber 52, and further an O ring 8 is put on the periphery of the ring body 4. At the time of generating an abnormal high pressure, a clearance is provided in a volute end face to escape the abnormal high pressure, and at the time of normal operation, pressing force of the belleville spring 7 and energizing force formed by the high pressure side action chamber 51 are applied to resist against deflecting force from an action chamber 3, to prevent unprepared displacement of the movable scroll 2 and suction heating by disconnecting a high pressure side from a low pressure side.

85. 发明专利

JPH03124984A SCROLL TYPE FLUID MACHINE 失效
公开(公告)号：JPH03124984A
公开(公告)日：1991-05-28
申请号：JP26113589
申请日：1989-10-05
申请人： DAIKIN IND LTD
发明人： TAKANO SACHIO , HIGUCHI YORIHIDE , SHIBAMOTO YOSHITAKA
IPC分类号： F04C18/02
摘要： PURPOSE:To prevent the separated oil from flowing back into compression chambers and prevent oil compression by providing a discharge hole at the center section of a moving scroll, and releasing a discharge fluid to a lower space where a motor is arranged. CONSTITUTION:A discharge hole 3 discharging a high-pressure discharge fluid is provided at the center section of the end plate 21 of a moving scroll 2. The discharge hole 3 is formed with an axial hole 31 extended downward in the axial direction and a diagonal hole 32 opening it in the diagonal horizontal direction at the protruded base section of a journal section 24. The discharge fluid discharged from the discharge hole 3 is once released to a crank storage chamber 45 and released to the lower space 6 of a housing 40 from the storage chamber 45. The discharge liquid is released downward, thus the interference between the discharge fluid and the oil separated from it can be prevented, the separated oil is prevented from flowing back into compression chambers A and B, and oil compression can be prevented.

86. 发明专利

JPH0388988A SCROLL TYPE FLUID MACHINE 失效
公开(公告)号：JPH0388988A
公开(公告)日：1991-04-15
申请号：JP22646589
申请日：1989-08-31
申请人： DAIKIN IND LTD
发明人： SHIBAMOTO YOSHITAKA , TAKANO SACHIO , HIGUCHI YORIHIDE
IPC分类号： F01C1/02 , F04C18/02 , F04C29/00
摘要： PURPOSE:To make equally distributed injection to compression chambers irrespective of the operating conditions by locating an injection port where the opening time to No.1 compression chamber in one turn of a drive shaft is longer than opening time to No.2 compression chamber. CONSTITUTION:When No.2 scroll 5 orbits round No.1 scroll 4 being driven by a drive shaft 71, an injecting port 8 opens alternately to No.1 and No.2 compression chamber A, B, and oil, etc., is injected into them. Therein the setting is such that the opening time of this port 8 is longer for the No.1 compression chamber A, which constitutes the high pressure side, and shorter for the No.2 B which constitutes the low pressure side. Therefore, uniform and proper amount injection is made to the two compression chambers A, B irrespective of the operating conditions.

87. 发明专利

JPH0374590A SCROLL TYPE FLUID MACHINE 失效
公开(公告)号：JPH0374590A
公开(公告)日：1991-03-29
申请号：JP21028989
申请日：1989-08-15
申请人： DAIKIN IND LTD
发明人： SHIBAMOTO YOSHITAKA , HIGUCHI YORIHIDE , TAKANO SACHIO
IPC分类号： F04C18/02 , F04C29/00 , F04C29/04 , F04C29/12
摘要： PURPOSE:To prevent a sucked fluid of low temperature from being overheated by the heat from high pressure chambers so as to improve compressing efficiency by accommodating a compressing element into a low pressure chamber and discharging the high pressure fluid sucked from a suction pipe and compressed into a first high pressure chamber from the discharge opening of a fixed scroll. CONSTITUTION:A compressing element P formed of a fixed and a movable scrolls 2, 3 and a motor 6 for driving the movable scroll 3 are vertically accommodated inside a casing 1. In this case, the compressing element P is accommodated inside a low pressure chamber 14 partitioned by plural partition bodies 12, 13. A low temperature fluid is sucked into the compressing element P from a suction pipe 17 opened to the low pressure chamber 14. The high pressure fluid compressed in a compressing element P is discharged into a first high pressure chamber 15 from the discharge opening 24 of a first protruding part 23. The suction pipe 17, the low pressure region of the fixed scroll 2, and the movable scroll 3 are thereby prevented from being overheated by the heat from the first and second high pressure chambers 15, 16.

88. 发明专利

JPH02181083A SCROLL TYPE FLUID MACHINE 失效
公开(公告)号：JPH02181083A
公开(公告)日：1990-07-13
申请号：JP33157688
申请日：1988-12-29
申请人： DAIKIN IND LTD
发明人： SHIBAMOTO YOSHITAKA , FUJIMOTO SATORU , TAKANO SACHIO , HIGUCHI YORIHIDE , AIURA TETSUO
IPC分类号： F01C1/02 , F01C19/08 , F04C18/02 , F16J15/16
摘要： PURPOSE:To prevent leak of fluid and improve drive efficiency by composing in such a way that a chip seal provided at the forward end of each lap of a rotary and a fixed scroll is applied tightly to an inner circumferential side surface and an outer circumferential side surface of a seal groove and an edge surface of wind end of a seal groove. CONSTITUTION:In a scroll type fluid device consisting of a rotary and a fixed scroll 7, 8 including spiral laps 13, 14 provided at mirror plates 11, 12 and engaged with each other, a seal groove 40 is spirally formed in an end surface of each lap 13, 14 profiling the lap 13, 14, and a chip seal 41 is engaged in each of them. This chip seal contacts the mirror plate 12, 11 which the lap 13, 14 faces, and it is formed in a structure where an inner side seal member 42 and an outer side seal member 43 provided on the inner circumferential side and the outer circumferential side of the seal groove 40 from the starting end of winding to the last end of winding, and an edge surface seal member 44 contacting the mirror plates 12, 13 and profiling the winding end of the seal groove 40 are connected with each other integrally.

89. 发明专利

JP2013253568A TWO STAGE COMPRESSOR 审中-公开
公开(公告)号：JP2013253568A
公开(公告)日：2013-12-19
申请号：JP2012130183
申请日：2012-06-07
申请人： DAIKIN IND LTD
发明人： ENDO CHIHIRO , KOMORI KEIJI , HIGUCHI YORIHIDE
IPC分类号： F04C23/00 , F04C18/356 , F04C29/00
摘要： PROBLEM TO BE SOLVED: To improve reliability of a two stage compressor upon operation so as not to make a partitioning member deflect toward a piston at a low stage side in the two stage compressor provided with the partitioning member put between cylinders at the low stage side and a high stage side.SOLUTION: A partitioning member (1) includes sidewall parts (7a and 7b) at a low stage side and a high stage side such that a concave part (6) is formed at a periphery (5) of a through-hole (4) of a drive shaft (20), and, while an inner periphery of the sidewall part (7b) at the high stage side is configured to be able to curve, the partitioning member (1) includes a seal member (8) which can freely expand and contract and which seals between tips of both the sidewall parts (7a and 7b) and a small hole part (9) which passes through the sidewall part (7a) at the low stage side to allow communication between inner space (6a) of the concave part (6) and a compressing room (28) at the low stage side.

90. 发明专利

JP2003262193A SEALED COMPRESSOR 审中-公开
公开(公告)号：JP2003262193A
公开(公告)日：2003-09-19
申请号：JP2002061968
申请日：2002-03-07
申请人： DAIKIN IND LTD
发明人： KUMAKURA EIJI , HIGUCHI YORIHIDE
IPC分类号： F04C29/00 , F04C18/32 , F04C29/06
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of noise and vibration with a relative movement of an eccentric part 62 of a driving shaft 31 in a clearance inside of the cylinder 21 in the axial direction in relation to the cylinder 21 by pressure pulsation before and after a discharge of the coolant gas compressed in a compression chamber 26 into the casing 10 in a rotary sealed compressor 1 provided with a compression mechanism 20 for compressing the coolant gas and a driving motor 30 for driving the compression mechanism 20 through the driving shaft 31 in the casing 10. SOLUTION: This sealed compressor is provided with a slide-contact plate 81 interposed between the inner surface of the cylinder 21 in the periphery of a shaft hole 23a of a front head 23 and a surface of the eccentric part 62 facing the inner surface of the cylinder 21, and a compression spring 82 installed in the shrinking condition between the slide-contact plate 81 and the inner surface of the cylinder 21 of the front head 23 to push the eccentric part 62 toward a rear head 24 so that the eccentric part 62 is pushed to the inner surface of the cylinder 21 of the rear head 24. COPYRIGHT: (C)2003,JPO

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