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51. 发明专利

JPS6245991A SCROLL COMPRESSOR 失效
公开(公告)号：JPS6245991A
公开(公告)日：1987-02-27
申请号：JP18417185
申请日：1985-08-23
申请人： HITACHI LTD
发明人： MURAYAMA AKIRA , UCHIKAWA NAOSHI , TAMURA TAKAHIRO , MIZUNO TAKAO , SAKURAI KAZUO
IPC分类号： F04C18/02 , F04C29/02
摘要： PURPOSE:To obtain the sufficient feed oil head by providing the first lubrication pump at one end of a driving shaft on the motor side and providing the second lubrication pump at the other end of the driving shaft on the compressor side together with conducting the oiling to two bearings in a serial manner. CONSTITUTION:Oiling is conducted by both a truncated-cone-shaped oil sucking pipe 5d, which is soaked in an oil sump situated underneath a sealed vassel 7 and which is located at one end of a driving shaft 5, and the first lubrication pump, which is made up of an eccentric lubrication hole 5c within the driving shaft. The pressure of the oil, which reached an eccentric hole 5a within the driving shaft, is further raised by the second lubrication pump mechanism that is made up of a groove 5e, and the oil is supplied to both a series path consisting of bearings 5b and 6a and a series path consisting of the bearing 5b and a thrust bearing 6b. With this contrivance, the head of a lubrication pump can be raised, thereby ensuring the stable lubrication.

52. 发明专利

JPS61169686A SCROLL COMPRESSOR 失效
公开(公告)号：JPS61169686A
公开(公告)日：1986-07-31
申请号：JP898285
申请日：1985-01-23
申请人： HITACHI LTD
发明人： MURAYAMA AKIRA , KUNO HIROAKI , UCHIKAWA NAOSHI , TAMURA TAKAHIRO , MIZUNO TAKAO
IPC分类号： F04C18/02 , F04C23/00 , F04C23/02 , F04C29/00
摘要： PURPOSE:To stably feed oil onto a bearing and provide a proper counter-thrust force by sealing the part between an intermediate pressure chamber and the peripheral part to a bearing, thus setting the peripheral part of the bearing to the equal pressure to an oil reservoir part, in a sealed type captioned apparatus having a low inside pressure. CONSTITUTION:A sealing member 5e made of synthetic resin or metal is installed between a partitioning wall 72 and the back surface of the mirror plate 5a of a turning scroll 5. The diameter of said sealing member 5e is smaller than the diameter of an Oldham's ring 9, and the sealing member 5e is positioned in the inside diameter of the Oldham's ring 9. An intermediate pressure chamber 7h is formed onto the back surface of the mirror plate 5a, and the peripheral part 7i of a bearing is allowed to communicate to an oil reservoir chamber 4 through a communication hole 7g, and set under the equal pressure to the oil reservoir chamber 4.

53. 发明专利

JPS61160591A SCROLL COMPRESSOR 失效
公开(公告)号：JPS61160591A
公开(公告)日：1986-07-21
申请号：JP84885
申请日：1985-01-09
申请人： HITACHI LTD
发明人： MURAYAMA AKIRA , KUNO HIROAKI , UCHIKAWA NAOSHI , TAMURA TAKAHIRO , MIZUNO TAKAO
IPC分类号： F04C18/02 , F01C1/02
摘要： PURPOSE:To make a scroll member machinable in an easy manner, by setting lap side from and lap groove bottom surface from in the scroll member separately. CONSTITUTION:Form in a lap outer side 2 of a scroll member is made up of an involute curve and circular arc, while from in a lap inner side 4 is made up of the involute curve and a circular arc 5 connected to the curve plus a circular arc 6. On the other hand, from in a lap groove bottom surface consists of a step differential 11 in a form connecting an envelope curve in time of moving a diametal circle equal to lap groove width on the involute curve 12 of a base radius equal to the lap side. Therefore, the lap side and the lap groove bottom surface are separately machinable and, what is more, sealability in a lap tip end is improvable.

54. 发明专利

JPS60162093A SCROLL FLUID MACHINERY 失效
公开(公告)号：JPS60162093A
公开(公告)日：1985-08-23
申请号：JP1513584
申请日：1984-02-01
申请人： HITACHI LTD
发明人： MIZUNO TAKAO , KUNO HIROAKI , UCHIKAWA NAOSHI , MURAYAMA AKIRA , TAMURA TAKAHIRO
IPC分类号： F04C28/28 , F04C28/16
摘要： PURPOSE:To reduce the load on starting a scroll compressor by installing, onto a fixed scroll, a valve apparatus through which fluid is released from a compression space close to the center to the space close to the outer periphery when the pressure in the compression space close to the center becomes higher than the discharge pressure. CONSTITUTION:The captioned scroll compressor is equipped with a valve apparatus 8 for releasing the gas in a compression space 6 close to the center into a compression space 7 close to the outer periphery, onto a scroll 2. Therefore, when the pressure in the compression space 6 increases larger than that in an upper space 4a, a valve piece 10 is pushed-up by the differential pressure, and the compression space 6 communicates to the compression space 7, and the load can be reduced on starting, etc., where the pressure in the upper space 4a is low.

55. 发明专利

JPS6085285A SCROLL FLUID MACHINE 失效
公开(公告)号：JPS6085285A
公开(公告)日：1985-05-14
申请号：JP19348583
申请日：1983-10-18
申请人： HITACHI LTD
发明人： SHIIBAYASHI MASAO , KOTANI SUMIHISA , SUEFUJI KAZUTAKA , TOUJIYOU KENJI , MURAYAMA AKIRA
IPC分类号： F04C18/02 , F01C1/02 , F04C23/00
摘要： PURPOSE:To prevent the drive shaft section from burning by constructing such that the radial gap between the laps of both scrolls with never contact against the side faces of laps of both scrolls even under inclined state of turning scroll in axial direction. CONSTITUTION:In order to prevent contact even upon inclination of turning scroll 3, the rear face gap at the outercircumference of mirror plate in turning scroll 3 of compressor is determined such that deltah , deltah*=deltah/Dm where, deltah is the rear face gap while deltah* is non-dimensional value of rear face gap.

56. 发明专利

JPS601395A SCROLL FLUID MACHINE 失效
公开(公告)号：JPS601395A
公开(公告)日：1985-01-07
申请号：JP10765183
申请日：1983-06-17
申请人： HITACHI LTD
发明人： MURAYAMA AKIRA , KUNO HIROAKI , UCHIKAWA NAOSHI , TAMURA TAKAHIRO , MIZUNO TAKAO , KOTANI SUMIHISA , TOMITA YOSHIKATSU , ARATA TETSUYA , SHIIBAYASHI MASAO , SUEFUJI KAZUTAKA
IPC分类号： F04C18/02 , F04C23/00 , F04C27/00
摘要： PURPOSE:To enable a stable operation in a wide range of an operating condition, by determining the pressure, which acts to the back of a rotating scroll, in terms of suction pressure and discharge pressure. CONSTITUTION:The pressure equalizing hole 101f of a rotating scroll 1 is provided in a position corresponding to the winding angle lambda of a lap 1b, which is defined as lambdad>lambda>d-2pi where lambdad denotes such winding angle of the lap as to form a minimum-volume space. The pressure for the winding angle lambda-lambdad is determined in terms of discharge pressure and the pressure for the winding angle lambdad-(lambda+2pi) is determined in terms of suction pressure, because of lambda

57. 发明专利

JPS59231186A THRUST BEARING DEVICE FOR SCROLL COMPRESSOR 失效
公开(公告)号：JPS59231186A
公开(公告)日：1984-12-25
申请号：JP10580183
申请日：1983-06-15
申请人： HITACHI LTD
发明人： MURAYAMA AKIRA , KUNO HIROAKI , UCHIKAWA NAOSHI , TAMURA TAKAHIRO , MIZUNO TAKAO , ARATA TETSUYA
IPC分类号： F04C23/02 , F04C18/02 , F04C29/00
摘要： PURPOSE:To prevent the pivoting of the thrust bearing by a method wherein the eccentric hole of the thrust bearing member having the eccentric hole is engaged with and mounted to a crank section and the outer peripheral part of the thrust bearing is retained partially to a balance weight. CONSTITUTION:The thrust bearing member 9 is provided with the eccentric hole 9, whose eccentricity is substantially equal to the same of the crank section 3a and the eccentric hole 9a is engaged with the crank section 3a of a driving shaft 3. On the other hand, the outer periphery 9a of the thrust bearing member 9 is guided partially by the inner diametral section 8b of the balance weight 8. According to this method, the thrust bearing member 9 contacts with the boss end face 1e of a rotary bearing at the whole surface thereof when a thrust acts on the driving shaft 3 and the shaft is moved, therefore the abrasion or drag of the boss may be prevented. Further, under such conditions, the thrust bearing member 9 tries to rotate about the center 9c of the eccentric hole 9a, however, the outer periphery 9b of the member 9 is guided by the inner diametral section 8b of the balance weight which is concentric with the member 9, therefore, the pivoting of the member may be prevented.

58. 发明专利

JPS59141793A Scroll hydraulic machine 失效
标题翻译：滚动液压机
公开(公告)号：JPS59141793A
公开(公告)日：1984-08-14
申请号：JP1450583
申请日：1983-02-02
申请人： Hitachi Ltd
发明人： SHIIBAYASHI MASAO , KOTANI SUMIHISA , TOMITA YOSHIKATSU , MURAYAMA AKIRA
IPC分类号： F04C18/02 , F04C29/02
CPC分类号： F04C29/026
摘要： PURPOSE:To improve oil separating efficiency as well as the workability of the oil supplying path of a mirror plate by a method wherein a delivery chamber at the upper part of an enclosed vessel is communicated with a lower motor chamber through a communicating path provided in the outer periphery of a fixed scroll and a dam is provided around the opening surface of the path at the fixed scroll side. CONSTITUTION:The communicating path 61, which serves as a gas path, is provided in the outer peripheral part 60g of mirror plate of the fixed scroll 60 while the dam 65 is formed around the communicating path 61. The oil, separated in the delivery chamber, is collected at a recess 16 to partition the gas flow path from an oil reservoir. Accordingly, the oil in the oil reservoir 66 will never be discharged to the communicating path 61 and the oil level of the oil reservoir 66 may be kept in constant. It is not necessary to form the oil supplying path in the scroll, therefore, the workability of the scroll may be improved.
摘要翻译：目的：通过以下方法提高油分离效率以及镜板供油路径的可加工性，其中封闭容器的上部的输送室通过设置在下述的通气路径中的下部马达室与下部马达室连通在固定涡盘侧的路径的开口面周围设置有固定涡旋件和坝体的外周。构成：作为气体路径的连通路径61设置在固定涡旋盘60的镜板的外周部60g中，而坝65形成在连通路61的周围。在输送室中分离的油被收集在凹部16处，以将气体流动路径从储油器分隔开。因此，油箱66中的油不会被排放到连通路径61，并且储油器66的油位可以保持恒定。不需要在涡旋件中形成供油路径，因此能够提高涡旋件的加工性。

59. 发明专利

JPS59141792A Enclosed type motor compressor 失效
标题翻译：封闭式电机压缩机
公开(公告)号：JPS59141792A
公开(公告)日：1984-08-14
申请号：JP1450283
申请日：1983-02-02
申请人： Hitachi Ltd
发明人： MURAYAMA AKIRA , KUNO HIROAKI , UCHIKAWA NAOSHI , TAMURA TAKAHIRO , MIZUNO TAKAO , ARATA TETSUYA
IPC分类号： F04C18/02 , F04C29/02
CPC分类号： F04C29/023
摘要： PURPOSE:To feed oil to respective bearings and sliding parts of a scroll compressor stably by a method wherein two paths, through which the lubricating oil is supplied to the upper main bearing of a crank shaft, the bearing of a rotary scroll and the like by a pressure difference, are provided independently. CONSTITUTION:The oil supplying path 20, opening at a lower main bearing 14, the oil supplying path 21, opening at the upper main bearing 13, and the oil supplying path 22, opening at the rotary bearing 10 of the rotary scroll 6 and the sliding parts of the fixed scroll 5 and the rotary scroll 6, are provided independently in the crank shaft 7. Accordingly, the unbalance of distribution of oil supplying amount to respective bearings 13, 14 may be prevented and the stable oil supplying may be effected. Further, more stable oil supplying may be effected by providing the oil supplying path further more.
摘要翻译：目的：通过以下方式将油压稳定地供给到各个轴承和涡旋压缩机的滑动部件：通过这样的方法，通过以下方法将润滑油供给到曲轴的上主轴承，旋转涡旋件的轴承等通过独立地提供压力差。构成：在下部主轴承14处开放的供油路径20，在上部主轴承13处的供油路21和供油路径22，在旋转涡旋件6的旋转轴承10处开口，固定涡旋件5和旋转涡旋件6的滑动部分独立地设置在曲轴7中。因此，可以防止供油量相应于各个轴承13,14的不平衡，并且可以实现稳定的供油。此外，可以通过进一步提供供油路径来实现更稳定的供油。

60. 发明专利

JPS59119091A Scroll type fluid machine 失效
标题翻译：滚筒式流体机
公开(公告)号：JPS59119091A
公开(公告)日：1984-07-10
申请号：JP22607182
申请日：1982-12-24
申请人： Hitachi Ltd
发明人： MURAYAMA AKIRA , KUNO HIROAKI , UCHIKAWA NAOSHI , TAMURA TAKAHIRO , MIZUNO TAKAO , SHIIBAYASHI MASAO
IPC分类号： F04C18/02 , F01C1/02 , F04C23/00
CPC分类号： F01C1/0215 , F04C23/008 , F04C2250/10 , F05B2250/50
摘要： PURPOSE:To prevent compression of oil, by releasing oil existing at the outer peripheral portion of the end plate of a revolving scroll into a back-pressure chamber or a recess formed in a frame. CONSTITUTION:A groove 7a is formed circumferentially in the surface of a recess 4a of a frame 4 opposing the end plate 1a of a revolving scroll 1. Through provision of such a groove 7a, oil can be released via the groove 7a even in case that the end plate 1a of the revolving scroll 1 comes close to the frame 4, so that compression of oil is prevented and the driving force can be decreased.
摘要翻译：目的：为了防止油的压缩，通过将存在于回转涡卷的端板的外周部的油释放到形成在框架中的背压室或凹部中。构成：在与旋转涡卷1的端板1a相对的框架4的凹部4a的表面上周向形成有槽7a。通过设置这样的槽7a，即使在回转涡卷1的端板1a靠近框架4，从而防止油的压缩并且可以降低驱动力。

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