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31. 发明专利

JPH02308991A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH02308991A
公开(公告)日：1990-12-21
申请号：JP13118389
申请日：1989-05-24
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： SUZUKI SHINICHI , BAN TAKASHI , IZUMI YUJI , YOSHIDA TETSUO , FUKANUMA TETSUHIKO
IPC分类号： F01C17/06 , F04C18/02
摘要： PURPOSE:To prevent vibration and noises by providing cylindrical recess portions the diameters of which differ from each other at the opposite side face of the scroll portion of a movable scroll and a fixed basic plate. CONSTITUTION:A fixed basic plate 4 is provided between housing 2, 3, a fixed scroll 11 and a movable scroll 12 are disposed in the housing 3 and scroll portions are opposited to each other. Recess portion forming plates 15, 16 are fitted to the fixed basic plate 4 and the basic end wall 12a of the movable scroll with pins 17. The recess portion 18 of the fixed basic plate 4 has a diameter smaller than that of the recess portion 19 of the basic end wall 12a of the movable scroll. The small diameter portion 20a and the large diameter portions 20b of a short cylindrical disposing member 20 are engaged with the recess portions 18, 19. Consequently, the central through-hole 4a, the eccentric rod 7, etc. of the fixed basic plate can be formed in a large diameter so that vibration and noises are reduced and wear resistance is improved.

32. 发明专利

JPH02308990A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH02308990A
公开(公告)日：1990-12-21
申请号：JP12854989
申请日：1989-05-22
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： SUZUKI SHINICHI , BAN TAKASHI , IZUMI YUJI , YOSHIDA TETSUO
IPC分类号： F04C18/02 , F01C17/06
摘要： PURPOSE:To prevent vibration and early abrasion by arranging a plurality of circular recess portions at the opposite side face of the scroll portion of a movable scroll and a fixed basic plate facing thereto, and integrally connecting a disposing member disposed between the recess portion facing to each other. CONSTITUTION:Housings 2, 3 getting a fixed basic plate therebetween are provided, a fixed scroll 11 is provided in the housing 3. A movable scroll 12 is provided to opposite scroll portions 11b, 12b each other, recess portion forming plates 15, 16 are fitted to the fixed basic plate 4 and the movable scroll 12 with pins 17 respectively. A plurality of circular recess portions 18, 19 are circularly arranged to be provided to the recess portion forming plates 15, 16, a disposing member is disposed, a retaining ring 21 is engaged with a groove 20a to be connected integrally therewith to retain the disposing member. The vibration of the disposing member is prevented by the retaining ring to eliminate the generation of noises and early abrasion. And also its assembly becomes easy.

33. 发明专利

JPH02238190A CAPACITY CHANGEABLE SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH02238190A
公开(公告)日：1990-09-20
申请号：JP5734489
申请日：1989-03-09
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： SUZUKI SHINICHI , BAN TAKASHI , FUKANUMA TETSUHIKO , YOSHIDA TETSUO
IPC分类号： F04C28/10 , F04C18/02 , F04C28/16
摘要： PURPOSE:To make it possible to change the compression capacity in multi-stages by providing a fluid hole connecting a compression chamber with the low pressure side along the spiral of a fixed scroll at a position closer to the center part than a fluid entrance to the compression chamber and providing a compression delay valve mechanism and a suction throttle valve mechanism. CONSTITUTION:A suction throttle valve mechanism 8 provided in a suction passage 71 reaching a suction chamber 7 in a first housing 1 is composed of a spool 82 through a spring 83 in a column-like cylinder 81. The opening area of the suction passage 71 is changed corresponding to the pressure of a pressure control chamber 8a separated by bellows 85 connected with the spool 82. A fluid hole 91 is formed in the bottom plate of a fixed scroll 10 along the spiral of the fixed scroll 10 at a closer position to the center part than a fluid entrance 72 connected with a compression chamber 5 in the middle of compression from the suction chamber 7, so the compression chamber 5 is connected with the suction chamber 7. This fluid hole 91 is opened and closed by a compression delay valve mechanism 92 equipped with a valve 921 driven by an electromagnetic 920.

34. 发明专利

JPH02204694A CAPACITY VARIABLE MECHANISM IN SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH02204694A
公开(公告)日：1990-08-14
申请号：JP2428689
申请日：1989-02-02
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： SUZUKI SHINICHI , BAN TAKASHI , FUKANUMA TETSUHIKO , YOSHIDA TETSUO
IPC分类号： F04C28/00 , F04C18/02 , F04C28/10 , F04C28/16
摘要： PURPOSE:To make a proper variable effect entailable at all ranges from low speed to the higher one by constituting each motion of a bypass on-off mechanism and a inlet throttle mechanism to be controlled by a control valve according to inlet refrigerant gas pressure before being throttled. CONSTITUTION:An inlet throttle mechanism consisting of a throttle spool 16, a pressing spring 17 and a control pressure chamber S1, and a bypass on-off mechanism consisting of an on-off spool 18, a pressing spring 19 and a control pressure chamber S2 both are controlled for interlocking by either supply of discharge pressure or inlet pressure by a control valve mechanism 21. Combined use of the bypass on-off mechanism, which comes smaller in a variable effect in proportion as going higher in rotational speed, and the inlet throttle mechanism, which comes larger in the variable effect, the larger in passage resistance of refrigerant gas, the smaller in the rotational speed, compensate a variable action at a speed range, where each variable effect is hard to be brought into full play, with each other. Accordingly, a proper variable effect at all ranges from low speed to the higher one can be thus entailed.

35. 发明专利

JPH02119691A SCROLL-TYPE COMPRESSOR 失效
公开(公告)号：JPH02119691A
公开(公告)日：1990-05-07
申请号：JP27431188
申请日：1988-10-28
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： BAN TAKASHI , HOSHINO NOBUAKI , FUKANUMA TETSUHIKO , YOSHIDA TETSUO
IPC分类号： F04C18/02 , F01C17/06
摘要： PURPOSE:To improve the productivity by clamping between counterbore bearing surface and the connecting surface of the first housing by fastening means for connecting the first and second housings. CONSTITUTION:A fixed ring 560 and a base plate 54 forming a rotation preventing mechanism 50 of a movable scroll 42 are stored in a counterbore bored in the connecting surface F of the second housing 120. When the first housing 100 and the second housing 120 are connected by a machine screw 14, the fixed ring 560 clamps between the counterbore bearing surface and the connecting surface F of the first housing 100 together with the base plate 54. Thus, machine screws used in fastening the fixed ring can be emitted, and further the accompanied tapping machining and assembling work can be eliminated so as to improve productivity.

36. 发明专利

JPH0227183A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH0227183A
公开(公告)日：1990-01-29
申请号：JP17836288
申请日：1988-07-18
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： SUZUKI SHINICHI , FUKANUMA TETSUHIKO , BAN TAKASHI , HOSHINO NOBUAKI
IPC分类号： F01C1/02 , F04C18/02
摘要： PURPOSE:To avoid breakage of an end terminal without the thinning of thickness by making a cutting path along an inner wall surface in the side of the end terminal a curve diverted gradually from an extended line of an involute curve. CONSTITUTION:An external wall surface 3a of a spiral part 3 formed upright in a basic terminal wall 2 of a fixed scroll 1 intersects with a circumference C1 of a radius R of the basic terminal wall 2 at an end terminal 3', and it is so formed that the end terminal 3' of the spiral part 3 which ranges from an intersection P1 of the circumference C1 and the external wall surface 3a to a starting point becomes gradually thinner compared to the other portions. At the end terminal 3, more than the escaping amount of the thin wall is absorbed by the diverting amount, through the shifting of an end mill along a cutting path that is gradually diverted outside of the involute curve, and the trespassing of the inner wall surface behind the back of the thin wall to the inside of the involute curve is thus avoided.

37. 发明专利

JPH0216384A SCROLL TYPE COMPRESSOR 失效
公开(公告)号：JPH0216384A
公开(公告)日：1990-01-19
申请号：JP16530088
申请日：1988-07-02
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： KATOU KAZUNORI , BAN TAKASHI , HOSHINO NOBUAKI , FUKANUMA TETSUHIKO
IPC分类号： F04C28/28 , F04C18/02
摘要： PURPOSE:To promptly further accurately detect a compressor for its lock condition by providing fixed and turning scrolls and a sensor which detects a rotary motion of a balancer following rotation of a rotary shaft. CONSTITUTION:A fixed scroll 10 is housed in a center housing 3. A turning scroll 11 is connected oppositely facing to the fixed scroll 10. A compression chamber 12 is formed by base end walls 10a, 11a and swirl parts 10b, 11b in both the scrolls 10, 11. A magnetic sensor 28, serving as the lock detecting means of a compressor, corresponds to a balancer 8 provided on a rotary shaft 5, and a rotary motion of the balancer 8 is detected. Thus, the compressor can be promptly further accurately detected for its lock condition.

38. 发明专利

JPS6412138A CONTROL DEVICE FOR ELECTROMAGNETIC CLUTCH FOR DRIVING COMPRESSOR 失效
公开(公告)号：JPS6412138A
公开(公告)日：1989-01-17
申请号：JP16833387
申请日：1987-07-06
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： HIYOUGO TAKASHI , GOTOU KUNIFUMI , BAN TAKASHI
IPC分类号： F16D48/06 , F04B35/00
摘要： PURPOSE:To reduce the shock at starting of a compressor by providing a pulse generating means for continuously applying a pulse having a predetermined pulse width and pulse interval to an electromagnetic clutch. CONSTITUTION:When an air conditioner switch 51 is turned on, an output voltage S of a voltage regulator 50 becomes a H level, and a pulse train B generated from a pulse generating circuit 52 is supplied through an OR circuit 54 to a power transistor 56 to drive same and drive an excitation coil 3, thus engaging an electromagnetic clutch. When a predetermined time (about 1.5 sec., for example, set in an ON delay circuit 53 is elapsed, an output signal A of the ON delay circuit 53 becomes H. Accordingly, the power transistor 56 continues to be on through the OR circuit 54, and the excitation coil 3 continues to be excited. On the other hand, when the switch 51 is turned off, the power transistor 56 is turned off after the predetermined time set in the ON delay circuit 53, and the energy of the excitation coil 3 is discharged by a discharging circuit 57-59, thus releasing the electromagnetic clutch. Thus, the shock at starting of a compressor may be reduced.

39. 发明专利

JPS6272931A STARTING SHOCK ABSORBING MECHANISM IN ELECTROMAGNETIC CLUTCH 失效
公开(公告)号：JPS6272931A
公开(公告)日：1987-04-03
申请号：JP21303685
申请日：1985-09-25
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： GOTOU KUNIFUMI , MAKITA AKIMASA , BAN TAKASHI
IPC分类号： F16D27/105 , F16D27/10
摘要： PURPOSE:To aim at absorption of a starting shock, by dividing a drum to be installed in facing to a driving wheel into the inner drum and the outer one, and installing a pair of friction plates to contact or separate to or from the outer drum and the driving wheel via an electromagnet. CONSTITUTION:There is provided with a drum 7 free of loose rotation in making it face to a driving wheel 3. This drum is made up of being divided into an inner drum 7A and an outer drum 7B, and a pair of friction plates 10 and 11 are attached to the outer drum 7B and the driving wheel 3 face-to-face, while they are installed free of contact or separation to or from the drum 7B and the driving wheel 3 via an electromagnet 12. With this constitution, at the time of clutch engagement, such a state that the outer drum 7B is attracted toward the driving wheel 3 owing to action of the electromagnet 12 and rotation of the driving wheel 3 is transmitted to the drum 7 as producing slippage between both these friction plates 10 and 11 is secured. That is to say, at the clutch engagement, a so-called half clutch state is secured for the specified time long and afterward a normal engagement state is secured owing to action of centrifugal force.

40. 发明专利

JPS5838394A VANE COMPRESSOR 失效
公开(公告)号：JPS5838394A
公开(公告)日：1983-03-05
申请号：JP13651981
申请日：1981-08-31
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： NAKAYAMA SHIYOUZOU , INAGAKI MITSUKANE , BAN TAKASHI , OONO HIROMITSU
IPC分类号： F04C18/344
摘要： PURPOSE:To prevent abnormal rise of pressure due to compression of liquid and to thereby protect vanes of a vane compressor against damage, by shaping the inner wall surface of a cylinder in a form satisfying a particular relationship, and selecting the inner diameter of the cylinder to be 0.02-1mm. greater than the minimum length of the vanes. CONSTITUTION:A cylinder 10 is not shaped in a perfectly circular form but shaped in a form satisfying a particular relationship. That is, in a section B shown in the drawing, a tip seal 72 is urged outward from its slot 68 along with rotation of a vane 62 and kept in contact with the inner wall surface of the cylinder 10. Therefore, when pressure in a compression chamber 74 is raised to a level overcoming the above urging force, the tip seal 72 is forced back into the slot 68 by the pressure in the compression chamber 74 and a predetermined clearance (0.02-1mm.) is formed between the tip seal 72 and the inner wall surface of the cylinder 10. Resultantly, the high pressure developed in the compression chamber 74 is released through the clearance into a compression chamber 76 preceding the vane 62 and then into a discharge chamber 22, so that it is enabled to prevent abnormal pressure rise in the compression chamber.

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