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101. 发明专利

JPH07127588A HORIZONTAL COMPRESSOR 失效
公开(公告)号：JPH07127588A
公开(公告)日：1995-05-16
申请号：JP27659893
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： F04C29/02
摘要： PURPOSE:To surely prevent the seizure and wear at each bearing part by constantly securing sufficient amount of the oil to each bearing part in a horizontal compressor. CONSTITUTION:An oil collecting chamber 11 to collect the oil to be supplied to lubricating parts of a bearing housing 5 is provided in the bearing housing 5, and an oil returning passage 12 to return the oil collected in the oil collecting chamber 11 to an oil storing recess O in the inner bottom part of the horizontal casing is formed on the upper side of the bearing housing 5 to constantly store the oil in the oil collecting chamber 11.

102. 发明专利

JPH04284192A SCROLL TYPE FLUID MACHINERY 失效
公开(公告)号：JPH04284192A
公开(公告)日：1992-10-08
申请号：JP4946191
申请日：1991-03-14
申请人： DAIKIN IND LTD
发明人： HIGUCHI YORIHIDE , TAKADA HIROYA , TANIWA HIROMICHI
IPC分类号： F01C1/02 , F04C18/02 , F04C29/00
摘要： PURPOSE:To prevent a lead wire from being damaged by the heat of welding by pressing the lead wire inserted into a gas passage to a fixed scroll and to reduce the flow resistance of the high pressure gas due to the lead wire. CONSTITUTION:A lead wire 9 connecting a terminal 8 arranged in the upper part of a casing 1 and a motor 6 is inserted into a gas passage 7. An installation fitting 90 for pressing the lead wire 9 on a fixed scroll 3 is fixed on the fixed scroll 3, and the lead the fixed scroll 3 and a frame for supporting the fixed scroll 3 and wire is prevented from being damaged by the heat of spot welding a movable scroll 4 onto a casing 1 by the pressing to the fixed scroll 3 of the leka wire 9 by the installation fitting 90, and the flow resistance of the high pressure gas in the gas passage 7 due to the lead wire is reduced.

103. 发明专利

JPH03105091A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH03105091A
公开(公告)日：1991-05-01
申请号：JP24298289
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： F04C18/02
摘要： PURPOSE:To prevent the suction heating and improve the lubricity of a bearing surface and sealing performance between swirl bodies by forming an annular groove on a thrust bearing surface or the end plate of the second scroll in contact with the thrust bearing surface, opening an oil passage from the oil region in the high pressure environment and forming onto the end plate a passage communicating to the back surface chamber and a communication hole between the back surface chamber and an intermediate compression chamber. CONSTITUTION:The oil on the bottom part of a high pressure discharge chamber 74 is supplied into an annular groove 5 and circulates on the whole periphery, and oil lubricates a thrust bearing surface 3 and smoothes the revolution operation of the second scroll 2. Further, the oil is discharged into a back surface chamber 8 from an outer peripheral edge part 20, passing through a radial direction passage 6, and supplied into an intermediate compression chamber M through a communication hole 9. Since almost all portions of the oil used in the oil supply onto the thrust bearing surface 3 is discharged onto the back surface chamber 8 side without oozing to a suction chamber 72 side, the suction heating can be suppressed, and since the compression chamber in which oil pouring is carried out is the intermediate compression chamber M positioned in the intermediate part of a swirl, oil can be supplied favorably into the sliding parts of the swirl bodies 12 and 22, and the sealing performance between compression chambers A and B can be improved.

104. 发明专利

JP2003254236A HERMETIC COMPRESSOR 审中-公开
公开(公告)号：JP2003254236A
公开(公告)日：2003-09-10
申请号：JP2002058786
申请日：2002-03-05
申请人： DAIKIN IND LTD
发明人： HIGUCHI YORIHIDE , AZUMA HIROFUMI
IPC分类号： F04B39/00 , F04B39/12
摘要： PROBLEM TO BE SOLVED: To improve strength without increasing thickness of a casing in a hermetic compressor. SOLUTION: A terminal 38 connected to a driving motor 31 is air-tightly passed through a center part 3a in an upper wall part 3 of the casing 1 and is mounted. A discharge pipe 10 for discharging carbon dioxide compressed by a compression mechanism is air-tightly passed through a casing main body 2 and is mounted. This compressor is constituted as a high pressure dome type compressor A. The center part 3a of the upper wall part 3 is formed into a flat shape having a size allowing closely adhering of an electrode for welding. An inner end part of the discharge pipe 10 mounted on the casing main body 2 is arranged on a substantial extension line of an axial center in the driving motor 31 within the casing 1. COPYRIGHT: (C)2003,JPO

105. 发明专利

JP2003247490A ENCLOSED TYPE COMPRESSOR 审中-公开
公开(公告)号：JP2003247490A
公开(公告)日：2003-09-05
申请号：JP2002045903
申请日：2002-02-22
申请人： DAIKIN IND LTD
发明人： AZUMA HIROFUMI , HIGUCHI YORIHIDE
IPC分类号： F04B39/12 , F04B41/00 , F04C18/356 , F04C29/00 , F04C29/12
摘要： PROBLEM TO BE SOLVED: To position a bracket easily and fix it to a casing in a manner that a load applied to a supporting part is almost uniform in an enclosed type compressor having an enclosed domed casing of a basin shape having a bottom wall part protruding downward. SOLUTION: A bracket 26 is formed of a single plate, in which a fitting hole is bored so as fit up to the intermittent part of the bottom wall part of the casing. The bottom wall part is fit to the hole and integrated by welding to the periphery of the fitting-hole. In the fitting hole of the bracket 26, the area on the side of an accumulator A1 is made larger than the area on the opposite side of the accumulator A1 so that the gravity of the compressor A may be almost uniformly distributed around the periphery of the fitting hole in the bracket 26. COPYRIGHT: (C)2003,JPO

106. 发明专利

JP2001214872A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JP2001214872A
公开(公告)日：2001-08-10
申请号：JP2000088041
申请日：2000-03-28
申请人： DAIKIN IND LTD
发明人： KOSHO KAZUHIRO , HIGUCHI YORIHIDE , KATO KATSUZO , KOMORI KEIJI , KITAURA HIROSHI
IPC分类号： F04C18/02 , F04C23/00 , F04C27/00
摘要： PROBLEM TO BE SOLVED: To prevent efficiency reduction and a mechanical loss by controlling pressing force of a movable scroll to a fixed scroll in a scroll type compressor having the fixed scroll fixed in a casing and the movable scroll for meshing with the fixed scroll and pressing the movable scroll to the fixed scroll. SOLUTION: While the pressing force of the movable scroll 22 to the fixed scroll 21 is obtained by pressure of a high pressure space 52 acting on the back face side of the movable scroll 22, the pressing force is adjusted according to a fluctuation in the compression ratio caused by a change in an operation condition.

107. 发明专利

JP2001115974A ROTARY COMPRESSOR 失效
公开(公告)号：JP2001115974A
公开(公告)日：2001-04-27
申请号：JP29755199
申请日：1999-10-20
申请人： DAIKIN IND LTD
发明人： KOSHO KAZUHIRO , HIGUCHI YORIHIDE , KUMAKURA EIJI , OKAWA TAKEYOSHI , KATO KATSUZO
IPC分类号： F04C18/00 , F04C18/32
摘要： PROBLEM TO BE SOLVED: To prevent interference between a thin portion 42a around a delivery outlet 42 of a front head 22 or the like and a piston 24 during an operation and to prevent occurrence of efficiency reduction or the like, even in a rotary compressor using coolant having a large pressure difference during the operation or a rotary compressor with a relatively large volume. SOLUTION: A recessed part 42b for avoiding interference with a piston 24 in deformation of a peripheral part 42a is formed on an end surface on a cylinder chamber 25 side of the peripheral part 42a of a delivery outlet 42 formed in at least one of a front head 22 and a rear head 23.

108. 发明专利

JPH1113695A TURBO MACHINERY 失效
公开(公告)号：JPH1113695A
公开(公告)日：1999-01-19
申请号：JP17049697
申请日：1997-06-26
申请人： DAIKIN IND LTD
发明人： FUKUNAGA TAKESHI , YAMAJI HIROYUKI , HIGUCHI YORIHIDE
IPC分类号： F04D29/04 , F04D17/10 , F04D29/05 , F04D29/58 , H02K1/32
摘要： PROBLEM TO BE SOLVED: To improve reliability by arranging means for cooling a rotary shaft from an inside on the rotary shaft, and eliminating seizure caused by heat expansion of the rotary shaft. SOLUTION: Refrigerant gas and the like are sucked and boosted up from an intake pipe 19 by rotation of an impeller 15, and boost-up gas is delivered from a delivery pipe 21. Low temperature low pressure gas sucked from the suction pipe 19 is led into a penetrating hole 51 of a rotary shaft 13 by inertia, and is circulated to the suction pipe 19 through a leading-out pipe 49 and a piping 50 bypassing the penetrating hole 51. Since the rotary shaft 13 is cooled from an inside, it is suppressed that the rotary shaft 13 is over-heated by heating and the like caused by bearing frictional loss and leakage of gas of high temperature and high pressure, and thereby, heat expansion of the rotary shaft 13 is suppressed. It is thus possible to reduce clearance change of the rotary shaft 13 by a dynamic pressure type journal gas bearing 37, a labyrinth seal part 45, and the like, and it is also possible to prevent seizure.

109. 发明专利

JPH10290554A ROTOR FOR ROTATING MACHINE AND BALANCING METHOD THEREFOR 失效
公开(公告)号：JPH10290554A
公开(公告)日：1998-10-27
申请号：JP9570297
申请日：1997-04-14
申请人： DAIKIN IND LTD
发明人： FUKUNAGA TAKESHI , YAMAJI HIROYUKI , HIGUCHI YORIHIDE
IPC分类号： H02K1/22 , H02K7/04 , H02K15/16
摘要： PROBLEM TO BE SOLVED: To perform balancing through three face correction while sustaining the function and performance required for the rotor by fitting a cuttable balancing sleeve integrally over the rotor and balancing the rotor by cutting a part of the sleeve corresponding to the unbalanced part. SOLUTION: A balancing sleeve 7 is press fitted integrally over the entire core part 2 including an unbalanced part 6. The surface of the sleeve 7 is then cut on the same side as a weight M corresponding to the unbalanced part 6, thus forming a balancing recess (cut part) 7a. More specifically, the rotor is balanced statically by bringing about a state similar to fixing a weight m3 to the surface on the side opposite to the weight M, thereby balancing the rotor with the weight M. The weight M has substantially same weight as the weight m3 . Consequently, the rotor 1 can be balanced well by three face correction through a simple structure while sustaining the function and performance required for the rotor 1.

110. 发明专利

JPH10196642A ROTATIONAL DEVICE 失效
公开(公告)号：JPH10196642A
公开(公告)日：1998-07-31
申请号：JP15476597
申请日：1997-06-12
申请人： DAIKIN IND LTD
发明人： YAMAJI HIROYUKI , FUKUNAGA TAKESHI , HIGUCHI YORIHIDE
IPC分类号： F16C17/02 , F16C15/00
摘要： PROBLEM TO BE SOLVED: To keep accordance of rotational balance between a thrust plate and a driving shaft, and improve assembling facility and accuracy of the thrust plate. SOLUTION: A thrust plate 14 of a dynamic pressure thrust air bearing arranged in a turbo compressor is composed of a second circular member 141 arranged on an outer peripheral side and a first circular member 142 internally press-fitted to an inner peripheral surface 141a of the second circular member. A driving shaft 21 for driving an impeller of the turbo compressor is internally press-fitted to a center hole 142a of the first circular member 142. A press-fitting margin d1 between the center hole 142a and the driving shaft 21 is set smaller than that in a conventional case. The second circular member 141 may be made of titanium alloy, while the first circular member 142 may be made of steel so as to obtain a Young's ratio larger than titanium alloy. The press-fitting margin between the first circular member 142 and the second circular member 141 may be set larger.

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