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31. 发明专利

JP2000297971A REFRIGERATING CYCLE AND MANUFACTURE OF THE SAME 失效
公开(公告)号：JP2000297971A
公开(公告)日：2000-10-24
申请号：JP10382099
申请日：1999-04-12
申请人： MITSUBISHI ELECTRIC CORP
发明人： NAKAO HIDETO , MATSUKAWA KIMIAKI , NAKAJIMA SHINJI , MASUDA NOBORU , SEKIYA SHIN , MAKINO HIROAKI , OMORI TAKAKOTO , MATSUKI TETSUZO
IPC分类号： F25B1/00 , F25B41/06
摘要： PROBLEM TO BE SOLVED: To improve an expansion efficiency in a capillary tube for a refrigerating/air-conditioning device and prevent the lowering of flow rate of refrigerant, which is due to the adhesion of sludge in the same tube. SOLUTION: A capillary tube 28 is provided with at least one place of projected part 29 on the inner surface of the same to improve an expansion efficiency by the choking effect of refrigerant, which is caused by the projected part 29. The projected part 29 can be formed easily by applying a pushing force from the outside of the capillary tube 28 to deform the same through plastic deformation. On the other hand, the film 30 of a water repellent material is formed on the inner surface of the capillary tube 28 whereby the adhesion of sludge can be reduced remarkably. The film 30 of water repellent material is formed by forming the film 31 of a surfactant on the inner surface of the capillary tube 28, then, the water repellent material is applied thereon whereby an uniform film can be formed while a firing process is applied if necessary in accordance with the nature of the water repellent material.

32. 发明专利

JPH09256970A SCROLL COMPRESSOR 失效
公开(公告)号：JPH09256970A
公开(公告)日：1997-09-30
申请号：JP6819996
申请日：1996-03-25
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOSONE NOBUNORI , MATSUKI TETSUZO , SUGAWA MASAAKI , HARA SHOICHIRO , TOYODA NORIHIKO
IPC分类号： F04C27/00 , F01C21/10 , F04C18/02 , F04C23/00 , F04C29/00
摘要： PROBLEM TO BE SOLVED: To surely partition a high/low pressure space, by adhering a first stepped part in a high/low pressure separator peripheral surface to a vessel main unit internal peripheral surface by diametric direction contraction of a vessel main unit after welding. SOLUTION: In a high/low pressure separator 4 used in a scroll compressor, a first stepped part 4e notched over a peripheral total surface is provided. This separator 4 is fixed to a frame 3 through a spacer 17, a tip end face of the stepped part 4e of the separator 4 is made in adhesion to an internal peripheral surface of a main unit by diametric contraction of a vessel main unit 9a after welding a closed vessel, a high pressure space 30 in a delivery side and a low pressure space 31 in a suction side are partitioned, to be sealed. A diametric direction contraction amount of the main unit 9a after welding is increased in accordance with approaching a closed vessel welding part 9e, so as to rationalize a position of the stepped part 4e of the separator 4, its deformation by excessive adhesion is prevented, simultaneously, a clearance between the periphery of the separator 4 and the main unit 9a can be suitably ensured by the stepped part 4e.

33. 发明专利

JPH07158569A SCROLL FLUID MACHINERY 失效
公开(公告)号：JPH07158569A
公开(公告)日：1995-06-20
申请号：JP30931693
申请日：1993-12-09
申请人： MITSUBISHI ELECTRIC CORP
发明人： MATSUKI TETSUZO , SUGAWA MASAAKI , ISHIGAKI TAKASHI
IPC分类号： F04C29/02 , F04C18/02
摘要： PURPOSE:To reduce the rise of an oil level by a method wherein a partition plate is disposed in the upper space of a motor chamber in a shell between a first suction port and the opening part in the shell of a suction pipe and a second suction port is formed in the partition plate so that a distance between the second suction port and a crank shaft is shorter than a distance between the crank shaft and the first suction port. CONSTITUTION:In a scroll fluid machine, a motor rotor and a first balancer 104 are shrink-fitted in a crank shaft 3 to drive the oscillation scroll 2 of a compression mechanism part, lubricating oil in an oil reservoir on the bottom of a hermetically sealed container 11 is pumped up through operation of a volume type pump attached on the lower end of a crank shaft 3 to feed oil to each slide part. In this case, a fan- shaped partition plate 103 is attached to the frame 5 of the compression mechanism in a state that the outer peripheral side is adhered on the inner wall surface of the shell 11 and a gap 103a (a second suction port) is formed between the inner peripheral side and a frame boss part 5c. The inner peripheral edge part 103c of the partition plate 103 in which a second suction port 103a is formed is arranged in a position where it makes further access to the crank shaft 3 than the inner wall surface 15a of the first suction port 15.

34. 发明专利

JPH03210086A SEAL SECTION STRUCTURE OF SWAY SCROLL FOR SCROLL COMPRESSOR 失效
公开(公告)号：JPH03210086A
公开(公告)日：1991-09-13
申请号：JP518490
申请日：1990-01-12
申请人： MITSUBISHI ELECTRIC CORP
发明人： MATSUKI TETSUZO , KIMURA TADASHI , SUZUKI YASUYUKI
IPC分类号： F04C28/28 , F04C18/02
摘要： PURPOSE:To obtain a pressure relief function and assure a stable action during the stationary operation by communicating split seal grooves provided on the end face of the spiral side plate of a sway scroll with slit grooves finer than the seal grooves. CONSTITUTION:Three split seal grooves 42a, 42b, 42c are formed on the end face of the spiral side plate 40 of a sway scroll 60, seal materials 41a, 41b, 41c are inserted and arranged respectively, and the seal grooves 42a, 42b and the seal grooves 42b, 42c are communicated by grooves 61a, 61b set to the size narrower than the seal grooves. The high pressure guided through the inner periphery gap 43a between the seal material 41a and the seal groove 42a from a compression chamber formed on the most inner periphery side by the spiral side plate 40 of the sway scroll 60 and the spiral side plate of a fixed scroll can be applied to the seal materials 41b, 41c inserted into the seal grooves of the outer spiral side plate respectively as back pressure.

35. 发明专利

JPH0330681B2 失效
公开(公告)号：JPH0330681B2
公开(公告)日：1991-05-01
申请号：JP26843385
申请日：1985-11-27
申请人： MITSUBISHI ELECTRIC CORP
发明人： MATSUKI TETSUZO , INABA TSUTOMU , KOBAYASHI NORIHIDE
IPC分类号： F01C1/02 , F04C18/02

36. 发明专利

JPH0327722B2 失效
公开(公告)号：JPH0327722B2
公开(公告)日：1991-04-16
申请号：JP10630785
申请日：1985-05-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： INABA TSUTOMU , KIMURA TADASHI , MATSUKI TETSUZO , KOBAYASHI NORIHIDE
IPC分类号： F04C18/02 , F01C1/02 , F04C29/00

37. 发明专利

JPH0343691A SCROLL COMPRESSOR 失效
公开(公告)号：JPH0343691A
公开(公告)日：1991-02-25
申请号：JP17629189
申请日：1989-07-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： NAKAJIMA HIROSHI , MATSUKI TETSUZO , KIMURA TADASHI
IPC分类号： F04C29/04 , F04C18/02 , F04C29/00
摘要： PURPOSE:To prevent the reverse current of refrigerant gas at what injects into a compression chamber a liquid refrigerant that is from a condensor outlet and which is guided by means of a refrigerant injection piping, by providing within a refrigerant injection hole a check valve which opens/closes through-holes against the refrigerant injection piping refrigerant injection hole within a fixed scroll. CONSTITUTION:A scroll compressor portion which is housed within a sealed container and driven by a motor portion, takes into a compression chamber 18 from a suction opening 17 refrigerant gas that has been sucked into the inside of the sealed container by the revolution of a swing scroll 14, and gradually compressed it and then, discharges it out of a discharge pipe 13. Refrigerant gas from a condensor outlet is injected into the compression chamber 18 by means of the difference of pressure through a refrigerant injection piping 28. In this instance, a refrigerant injection hole 52 provided at a fixed scroll 50 is made to be a stepped hole, and a valve seat ring 53 provided with a plurality of slits 53a closed extensively in a diameter direction, is integrally provided at the perimeter edge of the opening of its smaller diameter hole 52b. And an injection opening/closing value 54 which acts as a check valve that is contactable/ separatable against this valve seat ring 53, is provided, and energization is made upward by means of a spring 55.

38. 发明专利

JPH02157488A SCROLL COMPRESSOR 失效
公开(公告)号：JPH02157488A
公开(公告)日：1990-06-18
申请号：JP31032788
申请日：1988-12-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： KIMURA TADASHI , MATSUKI TETSUZO , SUZUKI YASUYUKI
IPC分类号： F04C18/02 , F04C29/04
摘要： PURPOSE:To cool efficiently a motor by providing a shunt chamber formed with an overflow port to introduce working fluid into the upper compressor mechanism, the lower motor stator and motor rotor sections and the upper coil end section of side motor stator in an opening of an intake pipe on the inner wall of a shell. CONSTITUTION:When a motor rotor 10 beings to a rotate, working fluid (refrigerant gas) is sucked from an intake pipe 16 into a shunt chamber 29 and a portion of the fluid ascends from an upper outflow port 30 through a communicating port in a shell 12 to be introduced into an intake port 3 provided in a fixed scroll. Also, another portion of the liquid flows vertically downward from a lower outflow port 31 between the outer peripheral surface of a motor stator 11 and the inner wall of the shell 12 to cool the lower coil end of the stator 11 and the whole stator 11 and then is introduced into the intake port 3 through the communicating port. Further, still another portion, after cooling the upper coil end of the stator 11 from a side outflow port 32, joins gas flowing out of the lower outflow port 31 to be introduced into the intake port 3.

39. 发明专利

JPH0233481A HORIZONTAL SCROLL COMPRESSOR 失效
公开(公告)号：JPH0233481A
公开(公告)日：1990-02-02
申请号：JP18400888
申请日：1988-07-22
申请人： MITSUBISHI ELECTRIC CORP
发明人： MATSUKI TETSUZO , YAMASHIRO YOSHIHIRO , NAKAJIMA HIROSHI
IPC分类号： F04C23/02 , F04C18/02
摘要： PURPOSE:To prevent the deterioration of the performance of a compressor by arranging bearings on both sides of a motor and fixing balancers with the radius size equal to or less than the radius of a motor rotor inside both bearings on the shaft of the motor. CONSTITUTION:Bearing supporters 41 and 42 are arranged on both sides of a motor stator 9, a balancer 44 is arranged in a space 43 formed between the large-diameter section 5b of a crank shaft 5 and a splasher 21. A balancer 45 is arranged between the bearing supporter 42 and a motor rotor 10, the radial length of the balancers 44 and 45 is set to the size of the radius of the motor rotor 10 or below. The balancers 44 and 45 formed with a large thickness size can be firmly fixed, oil is not stirred by the balancers 44 and 45, the oil level can be maintained high. The deterioration of the performance of a compressor can be prevented.

40. 发明专利

JPS63239390A SCROLL COMPRESSOR 失效
公开(公告)号：JPS63239390A
公开(公告)日：1988-10-05
申请号：JP7220387
申请日：1987-03-25
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUZUKI YASUYUKI , NAKAMURA TOSHIYUKI , MATSUKI TETSUZO , HARA MASAYOSHI
IPC分类号： F04C29/12 , F04C29/02 , F04C29/06
摘要： PURPOSE:To effectively attenuate the pulsation of discharge pressure for solving the problem of vibration, noise, or the like, by providing a discharge muffler on the base plate of a fixed scroll so as to minimize the discharge pressure receiving area. CONSTITUTION:On the outside surface on the opposite side of the scroll projection 1b of a fixed scroll base plate 1a, a cylindrical part 1c surrounding the circumference of a discharge port 6 is projectedly provided. And a discharge muffler 20 having a required discharge space 21 is arranged on the base plate 1a in such a way that the opening end 20a is fitted on this cylindrical part 1c, and further it is provided so as to be fixed on the upper shell 13 side. Further, a sealing member 22 which has been formed by an elastic material having a large thermal expansion coefficient such as thermoplastic resins, and which has such a configuration and dimensions as a clearance is caused in the fitting part between the opening end 20a of the discharge muffler 20 and the fixed scroll base plate 1a in the room temperature condition at the time of compressor stoppage is interposed. Thus, the pulsation of discharge pressure can be attenuated, and further the deformation of the fixed scroll base plate 1a can be restrained.

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