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11. 发明专利

JPH09296876A ELECTROMAGNETIC CONTROL VALVE 失效
公开(公告)号：JPH09296876A
公开(公告)日：1997-11-18
申请号：JP10979796
申请日：1996-04-30
申请人： TOYODA AUTOMATIC LOOM WORKS , SAGINOMIYA SEISAKUSHO INC
发明人： KAWAGUCHI MASAHIRO , SONOBE MASANORI , MIZUFUJI TAKESHI , KUBO YUJI , OGAWARA ICHIRO , OKADA TOMOO
IPC分类号： F16K31/06 , F04B39/10 , F04B49/06
摘要： PROBLEM TO BE SOLVED: To reduce any load in the time of starting as well as to facilitate a valve characteristic variation by fully opening this valve in time of nonenergizing of a magnetic coil, making compressor discharge side pressure act on the upper and lower sides of a valve element, and altering the diameter of a compensation pin installed in space between a discharge side pressure inlet port and a pressure sensitive regulator. SOLUTION: In time of nonenergizing of a magnetic coil 15, downward energizing force of a plunger spring 4 working on a valve part 8 is smaller than the upward energizing force of a valve spring 9, so that a valve 1 is fully opened. At that time, a compressor is in a state of full-unload operation, whereby a bellows 11 is contracted, and thus the underside of a valve stem 8b separates from a compensation pin 10. When being energized with current, a connecting rod 6 goes down according to a current value and thereby the valve 1 is closed. Then, compressor discharge side pressure acts on the upper and lower sides of a valve element 8a after passing through an internal equalizing hole 17g, and the valve 1 operates irrespective of a pressure differential between the discharge side of a compressor and the inside of a room. At that time, since the compensation pin 10 makes its compensating froce work on the bellows 11, a diameter of this compensation pin 10 is clanged, thereby changing a valve characteristic.

12. 发明专利

JPH09268973A CONTROL VALVE FOR VARIABLE DISPLACEMENT COMPRESSOR 失效
公开(公告)号：JPH09268973A
公开(公告)日：1997-10-14
申请号：JP7878096
申请日：1996-04-01
申请人： TOYODA AUTOMATIC LOOM WORKS , NOK CORP
发明人： MIZUFUJI TAKESHI , KAWAGUCHI MASAHIRO , KUBO YUJI , YOKONO TOMOHIKO , KAMIMURA KUNISUKE , NAGAYOSHI KAZUAKI , HIRATA ICHIRO , WATANABE YOSHIKI
IPC分类号： F04B49/06 , F04B27/08 , F04B27/14 , F04B27/18
摘要： PROBLEM TO BE SOLVED: To provide such a power saving control valve for a variable displacement compressor as being capable of ensuring accurate opening control of the valve with a small solenoid portion while reducing the influence of discharge pressure and pressure in a crank room. SOLUTION: To one side of a valve 64, a plunger 78 in a solenoid room 77 is connected via a solenoid rod 81. To the other side of the valve 64, a pressure sensitive portion 70 in a pressure sensitive room 68 is connected via a pressure sensitive rod 72. The size of a valve hole 66 opposed to the valve 64 is equalized to the size of the solenoid rod 81. One of discharge pressure Pd and pressure Pc in a crank room is introduced to a valve room 63 in which the valve 64 is stored and the other is introduced to the valve hole 66 and the solenoid room 77.

13. 发明专利

JPH10153171A BOTH HEADS PISTON TYPE VARIABLE CAPACITY COMPRESSOR 失效
公开(公告)号：JPH10153171A
公开(公告)日：1998-06-09
申请号：JP31239196
申请日：1996-11-22
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： KAWAGUCHI MASAHIRO , MIZUFUJI TAKESHI , KUBO YUJI , NAGAI HIROYUKI
IPC分类号： F04B49/10 , F04B27/10
摘要： PROBLEM TO BE SOLVED: To provide a both heads piston type variable capacity compressor which can achieve a clutchless operation. SOLUTION: A solenoid open/close valve 66 is provided on the connection position between a crank room 22 and an outer refrigerant circuit 36 and is provided with a solenoid 66a and a valve body 66b operated by the excitation/ disexcitation of the solenoid 66a. For example, during the time not requiring cooling and when the generation of frost is expected in the evaporator 39 on the outer refrigerant circuit, the communication of the outer refrigerant circuit 36 with the crank room 22 is intercepted by the disexcitation of the solenoid open/close valve 66, and the refrigerant circulation on the outer refrigerant circuit 36 is obstructed.

14. 发明专利

JPH09329088A CONTROLLER AND CONTROL METHOD FOR COMPRESSOR 失效
公开(公告)号：JPH09329088A
公开(公告)日：1997-12-22
申请号：JP14958396
申请日：1996-06-11
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： KAWAGUCHI MASAHIRO , KUBO YUJI , MAKINO YOSHIHIRO , MIZUFUJI TAKESHI
IPC分类号： F04B49/06 , B60H1/00 , F04B39/02
摘要： PROBLEM TO BE SOLVED: To hold the lubrication state of each sliding part in a favorable way by controlling a coolant circulation blocking means so as to continue the coolant circulation state on a outside coolant circuit for a preset time by means of a start control means regardless the state of an air conditioner switch after a case when the air conditioner switch is in its ON state at the time of starting a compressor. SOLUTION: At the time of starting an engine 20, start control is executed when the ON/OFF state of an air conditioning switch is determined as ON state. And regardless of a coolant load and operation of an air conditioning switch thereafter, an input current value to the solenoid 74 of a volume control valve 49 is made maximum so as to close a valve hole 55 by means of a valve body 54, and maximize the slant angle of a swash plate 23 so as to operate the compressor with the maximum volume. After a lapse of a preset period of time, lubricant taken out to an outside coolant circuit 78 is fed back together with sucked coolant gas so that the inside of the compressor may come in such a state as allowing existence of a sufficient quantity of lubricant for lubricating each sliding part. Accordingly, an oilless state can be ended in a short time to such an extent to exert no influence on each sliding part substantially.

15. 发明专利

JP2001263224A PISTON TYPE COMPRESSOR 失效
公开(公告)号：JP2001263224A
公开(公告)日：2001-09-26
申请号：JP2000342180
申请日：2000-11-09
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： KIMURA KAZUYA , OTA MASAKI , KAYUKAWA HIROAKI , UMEMURA SATOSHI , MIZUFUJI TAKESHI , UNEYAMA HIROSHI , FUKANUMA TETSUHIKO , KUBO YUJI
IPC分类号： F04B27/08
摘要： PROBLEM TO BE SOLVED: To provide a piston type compressor eliminating a driving shaft energizing spring and capable of easily assembling a structure for regulating a slide movement of a driving shaft. SOLUTION: In a housing hole 12a penetratingly formed in a cylinder block 12, an abutting member 60 is pressed in and fixed to a rear end part of the driving shaft 16. The driving shaft 16 regulates the slide movement of the driving shaft 16 in the direction for approaching a valve-port forming body 14 by abutment of the valve-port forming body 14 and the abutting member 60 for blocking up the opposite side of the inserting side of the driving shaft 16 of the housing hole 12a. This piston type compressor is set so as to form prescribed clearance between a second movement regulating part 14e of the valve- port forming body 14 and the abutting member 60 in a state of regulating the slide movement in the direction for going away from the valve-port forming body 14 of the driving shaft 16 in abutment by a first movement regulating part 11a.

16. 发明专利

JPH10205444A CONTROL VALVE FOR VARIABLE DISPLACEMENT COMPRESSOR 失效
公开(公告)号：JPH10205444A
公开(公告)日：1998-08-04
申请号：JP879297
申请日：1997-01-21
申请人： TOYODA AUTOMATIC LOOM WORKS , NOK CORP
发明人： KAWAGUCHI MASAHIRO , MIZUFUJI TAKESHI , MURASE MASAKAZU , KUBO YUJI
IPC分类号： F04B27/14 , F04B27/18 , F04B49/00 , F16K31/06
摘要： PROBLEM TO BE SOLVED: To provide a control valve for a variable displacement compressor to decrease the influence of a discharge pressure and a pressure in a control pressure chamber and perform reliable and accurate control of the opening of a valve element by a small solenoid part and perform saving of a power. SOLUTION: A plunger 78 in a solenoid chamber 77 is coupled to one side of a valve element 64 through a solenoid rod 81. A pressure-sensitive part 70 in a pressure-sensitive chamber 68 is coupled to the other side of the valve element 64 through a pressure-sensitive rod 72. The sectional area of the solenoid rod 81 is set to a value slightly higher than the opening area of a valve hole 66 corresponding to the valve element 64. One of a discharge pressure Pd and a pressure Pc in a crank chamber 15 combined with a control pressure chamber is introduced to a valve chamber 63 to contain the valve element 64 and the other of the discharge pressure Pd and the pressure Pc in the crank chamber to a valve hole 66 and the solenoid chamber 77.

17. 发明专利

JPH1089526A SOLENOID VALVE 失效
公开(公告)号：JPH1089526A
公开(公告)日：1998-04-10
申请号：JP26780496
申请日：1996-09-18
申请人： NOK CORP , TOYODA AUTOMATIC LOOM WORKS
发明人： KAMIMURA KUNISUKE , NAGAYOSHI KAZUAKI , HIRATA ICHIRO , WATANABE YOSHIKI , KAWAGUCHI MASAHIRO , SONOBE MASANORI , MIZUFUJI TAKESHI , KUBO YUJI
IPC分类号： F16K25/00 , F04B27/08 , F04B49/06 , F16K31/06
摘要： PROBLEM TO BE SOLVED: To improve the sealing performance and the reliability of a solenoid valve by flatting the portions of its valve element and its valve seat adapted to contact with each other for preventing adverse changes at the portions even if the through hole of its fixed member receiving the first rod and its passage are offset. SOLUTION: A solenoid valve 1 comprises a hollow solenoid body 3, a moving member 4 of a magnetic substance inserted into a hollow inside 14 of the solenoid body 3 so as to reciprocate therein, a fixed member 5 of a magnetic substance coaxially opposed to the moving member 4, a through hole 52 formed axially through the fixed member 5, a rod 6 slidably inserted into the through hole 52 and connected to the moving member 4 for their synchronous operation, a valve element 16 integrated with the rod 6, a valve seat 19 with or from which the valve element 16 contacts or separates, and a passage 20 formed through the valve seat 19. The portions of the valve element 16 and the valve seat 19 adapted to contact with each other are flatted.

18. 发明专利

JPH0953559A DELIVERY VALVE MECHANISM FOR RECIPROCATION TYPE COMPRESSOR 失效
公开(公告)号：JPH0953559A
公开(公告)日：1997-02-25
申请号：JP20622095
申请日：1995-08-11
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： FUJII TOSHIRO , MURAKAMI KAZURO , UMEMURA SATOSHI , MIYAMA MASARU , IWAMA KAZUAKI , KUBO YUJI
IPC分类号： F04B1/18 , F04B27/08 , F04B39/10
摘要： PROBLEM TO BE SOLVED: To release a delivery port at an optimum timing even when a pressure in a delivery chamber is fluctuated and to prevent breakage of a delivery valve mechanism even during high rotation. SOLUTION: A rotary delivery valve 37 comprises a notch part 43; and a notch groove 44 extending from the bottom on the inner circumferential side of the notch part 43 approximately in a circumferential direction on the advancing side in a rotation direction. The outer peripheral side of the notch groove 44 forms a flapper valve part 45 opening and closing due to a differential pressure between a cylinder bore and a delivery chamber and the behind side in a rotation direction of the notch part 43 forms a closedown part 46 not elastically deformed. The rotary delivery valve 37 is arranged in such a manner that it makes contact with the outer end face of a valve plate having a delivery port and the notch part 43 passes a delivery port right before completion the delivery stroke of a double ended piston in a cylinder bore, and integrally rotatably inserted in a drive shaft.

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