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1. 发明专利

JPH1193880A COMPRESSOR 失效
公开(公告)号：JPH1193880A
公开(公告)日：1999-04-06
申请号：JP25111297
申请日：1997-09-16
申请人： DENSO CORP , TOYODA AUTOMATIC LOOM WORKS
发明人： TAKEMOTO TAKESHI , AKIYAMA KUNITAKA , HISANAGA SHIGERU , HAYASHI HIROYUKI , WATANABE YASUSHI , MORI TATSUSHI
IPC分类号： F04C29/02 , F04C18/02
摘要： PROBLEM TO BE SOLVED: To improve separating capacity to separate lubricating oil and fluid by setting the volume of a delivery chamber of a compressor not more than the theoretical delivery volume of a compression mechanism. SOLUTION: A compression mechanism 110 sucks in/compresses a refrigerant by expanding/reducing the volume of an actuating chamber VC constituted by meshing spiral tooth parts 111a and 112a respectively formed in a fixed scroll 111 and a turning scroll 112, and delivers the refrigerant from a delivery port 112b formed in an end plate part 112a. The volume VM of a delivery chamber 120 is set so as to become the theoretical delivery volume VR or less of the compression mechanism 110, and is desirably set to 90% to 70% of the theoretical delivery volume VR. Thereby, the refrigerant is restrained from suddenly expanding and reducing by the delivery chamber 120, and since speed reduction in the refrigerant in the delivery chamber 120 can be restrained, reduction in an inflow speed of the refrigerant to a separating chamber 141 (a separator 140) can be prevented. Therefore, separating capacity of lubricating oil and the refrigerant is improved, and size reduction in a compressor can be attained.

2. 发明专利

JPH1182335A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH1182335A
公开(公告)日：1999-03-26
申请号：JP23528697
申请日：1997-08-29
申请人： DENSO CORP , TOYODA AUTOMATIC LOOM WORKS
发明人： AKIYAMA KUNITAKA , TAKEMOTO TAKESHI , HISANAGA SHIGERU , HAYASHI HIROYUKI , WATANABE YASUSHI , ISOMURA KENJI , ASO SHINSUKE
IPC分类号： F04C29/12 , F04C18/02 , F04C29/00 , F04C29/02
摘要： PROBLEM TO BE SOLVED: To provide a scroll type compressor displaying high reliability while ensuring the lubrication of a bearing device or the like and high refrigerating capacity. SOLUTION: In a housing comprising a shell 1, a front housing 2 and a back housing 4, an oil separation chamber 19 for separating a lubricating oil from a coolant gas after the compression, and an oil storing chamber 18 communicated with the oil separation chamber 19 for storing the lubricating oil, are mounted. The oil storing chamber 18 is communicated with a sliding part of a fixed spiral part 1b and a movable side plate 12c by an oil supply hole or the like formed on a gasket 33 and a oil supply hole 1h formed on the shell 1. A spot facing 1i for enlarging an opening area, is formed around an opening at a fixed spiral part 1b side of the oil supply hole 1h.

3. 发明专利

JPH1182338A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH1182338A
公开(公告)日：1999-03-26
申请号：JP24960397
申请日：1997-08-29
申请人： DENSO CORP , TOYODA AUTOMATIC LOOM WORKS
发明人： TAKEMOTO TAKESHI , AKIYAMA KUNITAKA , HISANAGA SHIGERU , HAYASHI HIROYUKI , WATANABE SHINICHI , WATANABE YASUSHI , MORI TATSUSHI , SHIMIZU IZURU , IGUCHI MASAO
IPC分类号： F04C29/02 , F04C18/02
摘要： PROBLEM TO BE SOLVED: To provide a scroll type compressor having high reliability while ensuring high lubrication of a bearing device or the like, and high refrigerating capacity. SOLUTION: In a housing comprising a shell 1, a front housing 2 and a back housing 4, an oil separating chamber 19 for separating a lubricating oil from a coolant gas after the compression, and an oil storing chamber 18 communicated with the oil separating chamber 19, and storing the lubricating oil, are mounted. The oil storing chamber 18 is communicated with a sliding part of a fixed spiral part 1b and a movable side plate 12C by an oil supply hole formed on a gasket 33, and an oil supply hole 1h formed on the shell 1. A filter 34 for capturing the foreign matters, is mounted between the oil storing chamber 18 and the oil supply holes formed on the gasket 33.

4. 发明专利

JPH1182326A SCROLL COMPRESSOR 失效
公开(公告)号：JPH1182326A
公开(公告)日：1999-03-26
申请号：JP23625597
申请日：1997-09-01
申请人： DENSO CORP , TOYODA AUTOMATIC LOOM WORKS
发明人： HISANAGA SHIGERU , HAYASHI HIROYUKI , TAKEMOTO TAKESHI , AKIYAMA KUNITAKA , WATANABE YASUSHI , MORI TATSUSHI , SHIMIZU IZURU
IPC分类号： F04C18/02
摘要： PROBLEM TO BE SOLVED: To reduce the excessive heating and specific volume by integrally forming a fixed scroll with a shell forming a profile, providing this shell with a spiral recessed groove, and forming a suction port communicated with the peripheral end of the spiral groove and for sucking the refrigerant gas from a refrigerating circuit to a compression chamber before compression. SOLUTION: In a scroll compressor, a front housing is fastened to a front part of a shell 1 by plural bolts 3 through an O-ring, and a rear housing is fastened to a rear part of the shell 1 by bolts through a gasket. Inside of this shell 1 is provided with a spiral recessed groove 1a so as to form a fixed scroll formed of a fixed spiral part 1b of the inner and outer walls and a fixed side plate of a residual part. The shell 1 is provided with a suction port 1f passing through at a position close to the peripheral end of the spiral groove 1a, and this suction port 1f is connected to an evaporator of a refrigerating circuit. A movable spiral part 12b of a movable scroll is engaged with a fixed side plate and a fixed spiral part 1b of the fixed scroll so as to form a compression chamber P.

5. 发明专利

JPH09256127A PRODUCTION OF HIGH STRENGTH DIE-CAST PRODUCT 失效
公开(公告)号：JPH09256127A
公开(公告)日：1997-09-30
申请号：JP6290696
申请日：1996-03-19
申请人： DENSO CORP , TOYODA AUTOMATIC LOOM WORKS
发明人： TAKAGI HIROMI , YOSHIKAWA KIYOSHI , YAMASHITA HIROSHI , IWANAMI SHIGEKI , WATANABE YASUSHI , YAMAMOTO SHINYA
IPC分类号： F04C18/02 , B22D17/00 , B22D29/00 , B22D30/00 , C22C21/02 , C22F1/043
摘要： PROBLEM TO BE SOLVED: To provide a producing method by which a high strength die-cast product excellent in mechanical strength of tensile strength and fatigue strength can be produced at a high efficiency. SOLUTION: An aluminum-silicon eutectic casting material contg., by weight, 7.5 to 12% silicon and at least either 1.5 to 4.8% copper or 0.2 to 0.7% magnesium is used and is cast by a high speed die casting method. The die-cast product is subjected to at least either water cooling in which, after releasing, in a state in which the surface temp. reaches the range of 250 to 450 deg.C, it is immersed in a water tank or aging treatment of holding in the range of 150 to 250 deg.C for prescribed time.

6. 发明专利

JPH10288169A PLATE INTERPOSING METHOD IN SCROLL COMPRESSOR 失效
公开(公告)号：JPH10288169A
公开(公告)日：1998-10-27
申请号：JP9705297
申请日：1997-04-15
申请人： DENSO CORP , TOYODA AUTOMATIC LOOM WORKS
发明人： NAKAZAWA KENJI , WATANABE YASUSHI , SHIMIZU IZURU , IGUCHI MASAO
IPC分类号： F04C18/02 , F01C17/06 , F04C29/00
摘要： PROBLEM TO BE SOLVED: To reduce the number of assembling process, change only a plate and prevent abnormal sound and abrasion by pressing pins of a specified number which are projected to the rear surface of a front housing or the front surface of a movable side plate in short width parts of slots of a specified number which are passed through the plate and extend in the orthogonally crossing direction with each other. SOLUTION: Two slots 30a, 30b which are located by holding a shaft center by the slots 30a, 30b each other are passed through a ring-shaped plate 30. The slot 30a extends in the shaft center direction and the slot 30b extends in the direction which is orthogonally crossed with the long hole 30a. Two pins 1a, 1b which are solid and have complete round in cross section are pressed in the rear surface of a front housing 1 by being axially projected to a location where the shaft center is held by the pins 1a, 1b each other. By pressing the pins 1a, 1b of the front housing 1 in the short width parts of the slots 30a, 30b of the plate 30, the plate 30 is fixed to the front housing 1. Pitch tolerance between the pins 1a, 1b is absorbed by the slot 30a and inclination tolerance of the pins 1a, 1b is absorbed by the slot 30b.

7. 发明专利

JPH0979150A MOVABLE SCROLL AND ITS MANUFACTURE 失效
公开(公告)号：JPH0979150A
公开(公告)日：1997-03-25
申请号：JP17825296
申请日：1996-07-08
申请人： TOYODA AUTOMATIC LOOM WORKS , DENSO CORP
发明人： FUKANUMA TETSUHIKO , WATANABE YASUSHI , YAMAMOTO SHINYA , TSUMAGARI YUICHI , IWANAMI SHIGEKI
IPC分类号： F04C27/00 , B21K3/00 , F04C18/02
摘要： PROBLEM TO BE SOLVED: To sufficiently secure strength even if a driving object part of a movable scroll is thinned by changing a mold parting surface at casting time, and making casting or a basis material at casting time remain on an outer peripheral surface of the driving object part. SOLUTION: An integral article W is molded by a first mold to form a main body part 64 and a second mold to form an almost cylindrical projecting part 65. Therefore, an outside diameter (d) of the projecting part 65 of the integral article W can be regulated in a desired range. An outer peripheral surface 65a of the projecting part 65 of the integral article W is gripped, and an outer peripheral surface 66a of a side plate forming part 66 and a spiral body forming part 67 are cut. Next, the spiral body forming part 67 after a cutting process is gripped, and an outside end surface 65b and inside surfaces 65c and 65d are cut. Therefore, a movable scroll in where a basis material of casting remains on an outer peripheral surface 43a of a boss 43 can be manufactured, and sufficient strength can be secured even if a driving object part is thin. Therefore, size reduction and weight reduction of a scroll type fluid machine can be attained.

8. 发明专利

JPH08326670A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH08326670A
公开(公告)日：1996-12-10
申请号：JP13786695
申请日：1995-06-05
申请人： TOYODA AUTOMATIC LOOM WORKS , NIPPON DENSO CO
发明人： FUKANUMA TETSUHIKO , WATANABE YASUSHI , YAMAMOTO SHINYA , WATANABE SHINICHI , YAMAMOTO YUJI
IPC分类号： F04C28/28 , F04C18/02 , F04C29/00 , F04C29/10
摘要： PURPOSE: To detect poor axial position of a counterweight at the time of its assembly by means of a lock sensor for finding out the rotational speed of a drive shaft. CONSTITUTION: A lock sensor 3 is provided radially through a front housing 30 and its sensing surface 3a is faced to the end surface 35a in radial direction of a counterweight 35. In such a case as longitudinally shifted position in axial direction of the counterweight 35, the counterweight 35 may deeply or shallowly cut across a magnetic flux by its lock sensor 3, thus pulse potential in which its intensity distribution is generated can be provided.

9. 发明专利

JPH0849671A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH0849671A
公开(公告)日：1996-02-20
申请号：JP18503694
申请日：1994-08-05
申请人： TOYODA AUTOMATIC LOOM WORKS , NIPPON DENSO CO
发明人： SHIMIZU IZURU , WATANABE YASUSHI , FUKANUMA TETSUHIKO , IWANAMI SHIGEKI , TSUMAGARI YUICHI
IPC分类号： F04C18/02 , F01C17/06
摘要： PURPOSE:To prevent the occurrence of wear owing to slide contact of the inner wall of a front housing or the base plate of a moving scroll with a ring. CONSTITUTION:The surface of the inner wall 20 of a front housing 2 is filled at intervals of a specified distance with fixed pins 22. The reverse surface of the base plate 11 of a moving scroll 10 is filled at intervals of a specified distance with moving pins 23. In such a way that an annular ring 24 is loosely fitted in the fixed pin 22 and the moving pin 23, the rotation blocking mechanism 21 of the moving scroll 10 is formed. Further, a wear preventing means is formed in such a way that the outer edge parts 27 and 28 and the inner edge parts 29 and 30 of the two flanks 25 and 26 of a ring 24 are formed in a curved surface.

10. 发明专利

JPH0835493A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH0835493A
公开(公告)日：1996-02-06
申请号：JP17272094
申请日：1994-07-25
申请人： TOYODA AUTOMATIC LOOM WORKS , NIPPON DENSO CO
发明人： YAMAGUCHI TETSUYA , WATANABE YASUSHI , FUKANUMA TETSUHIKO , YAMAMOTO YUJI
IPC分类号： F04C18/02 , F04C29/00
摘要： PURPOSE:To sufficiently remove any unbalance of centrifugal force, etc., taking place at the time of revolution of a movable scroll member. CONSTITUTION:The corner surface of the weight part 26 of a balance weight 25 facing to the corner surface 23 of a movable scroll member 11 is formed in a curved surface shape nearly same as the curved surface of the corner surface 23 of the movable scroll member 11. Thereby, the tip surface of the weight part 26 can be moved closer, to the base plate 12 of the movable scroll member 11 and the weight part 26 can be thickened much more. Consequently, the weight of the weight part 26 can be secured sufficiently and any unbalance load such as a centrifugal force taking place at the time of revolution of the movable scroll member 11 can be removed surely.

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