专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 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.

2. 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.

3. 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.

4. 发明专利

JPH10274153A VARIABLE CAPACITY TYPE COMPRESSOR 失效
公开(公告)号：JPH10274153A
公开(公告)日：1998-10-13
申请号：JP8050297
申请日：1997-03-31
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： KAWAGUCHI MASAHIRO , MURASE MASAKAZU , FUKANUMA TETSUHIKO , KUBO YUJI
IPC分类号： F04B27/08 , F04B27/10
摘要： PROBLEM TO BE SOLVED: To prevent generation of oscillations and noises under the minimum discharging capacity operation by dividing a cam plate into the side of a top dead center and the side of a bottom dead center by means of a virtual plane including an axis of a driving shaft, and forming the center of the gravity on the divided portion on the side of the top dead center. SOLUTION: A first virtual plane H1 includes an axis L of a driving shaft, while virtually dividing a tilting plate 23 into two of the side of a top dead center D1 and a side of a bottom dead center D2. A second virtual plane H2 includes the axis L of the driving shaft 16, the top dead center position D1 and the bottom dead center position D2. The second virtual plane H2 is thus formed perpendicularly to the first virtual plane H1. A center of gravity G of the cam plate 23 is formed on the divided portion of the first virtual plane H1 on the side of the top dead center D1. Namely, centrifugal force applied to the cam plate 23 generates unbalancencess. Even under the minimum discharging capacity, an inner surface of a through-hole 23a of the cam plate 23 is pressurized against the driving shaft for preventing displacement and fall thereof in the gravity direction of the driving shaft. It is thus possible to prevent to generate oscillations and noises.

5. 发明专利

JPH1037863A VARIABLE DISPLACEMENT COMPRESSOR 失效
公开(公告)号：JPH1037863A
公开(公告)日：1998-02-13
申请号：JP19198596
申请日：1996-07-22
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： KAWAGUCHI MASAHIRO , MIZUFUJI TAKESHI , SONOBE MASANORI , KUBO YUJI
IPC分类号： F04B27/14 , F04B27/18 , F04B49/06 , F16K31/06
摘要： PROBLEM TO BE SOLVED: To obviate the inflow of an electric current into a drive circuit due to counter electromotive force by installing a capacity control valve, altering the extent of pressure in a control pressure chamber, on a passage interconnecting this control pressure chamber and an inlet pressure area or discharge pressure area, and connecting a flywheel circuit to a solenoid making the valve element operate to open or close. SOLUTION: When a piston 36 is reciprocated by rotation of a swash plate 23, coolant gas taken into a cylinder bore 12a is discharged to a discharge chamber 39 via a discharge valve 43. At this time, a capacity control valve 49 is installed in a pressure supply passage 48 connecting this discharge chamber 39 and a crankcase 15, a pressure detecting passage 50 is made up in space between an inlet passage 32 and the capacity control valve 49. In succession, a diode 97 is installed in a storage space 93 of the capacity control valve 49, and cathode of this diode 97 is connected to the puls terminal of a combination 95, and the anode to a minus terminal, respectively, constituting a flywheel circuit against a solenoid 74, and any possible inflow of an electric current in the case where counter electromotive force has occurred in this solenoid 74 is checked.

6. 发明专利

JPH09324763A VARIABLE DISPLACEMENT COMPRESSOR AND CONTROL METHOD THEREOF 失效
公开(公告)号：JPH09324763A
公开(公告)日：1997-12-16
申请号：JP14164896
申请日：1996-06-04
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： KAWAGUCHI MASAHIRO , MIZUFUJI TAKESHI , SONOBE MASANORI , OKUNO TAKUYA , KUBO YUJI , TOKUNAGA EIJI
IPC分类号： F04B49/06 , F04B27/14
摘要： PROBLEM TO BE SOLVED: To provide a variable displacement compressor capable of avoiding a state an amount of lubricating oil returned from an external refrigerant circuit decreases according to occurrence of trouble in lubricating of each sliding part. SOLUTION: A control computer inputs value Ix calculated in response to each parameter to a solenoid 74 of a capacitance control valve 49 as an input current value I and sets an intake pressure. The capacitance control valve 49 adjusts a pressure in a crank case 15 such that the intake pressure is a set intake pressure. Accordingly, the inclination of a cam plate 23 varies to thereby change a discharge capacity. When the calculated value Ix is set so that the inlet pressure exceeds a predetermined value (Ix =I1) to decrease the set intake pressure. Therefore, the discharge capacity is increased.

7. 发明专利

JPH10231782A VARIABLE CAPACITY TYPE COMPRESSOR 失效
公开(公告)号：JPH10231782A
公开(公告)日：1998-09-02
申请号：JP3214797
申请日：1997-02-17
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： KAWAGUCHI MASAHIRO , KUBO YUJI , FUKANUMA TETSUHIKO , MIZUFUJI TAKESHI
IPC分类号： F04B49/00 , F04B27/08 , F04B27/14
摘要： PROBLEM TO BE SOLVED: To provide a variable capacity type compressor which can prevent flowing-in of a coolant from in external coolant circuit to the inner side, in an operation stopping condition. SOLUTION: A capacity control valve 49 regulates the opening of an air feeding passage 48 being induced to the pressure of a suction coolant gas led in to a pressure sensitive chamber 58. A pressure sensitive passage 50 connects the pressure sensitive chamber 58 and the housing hole 27 of the capacity control valve 49, and it is opened at a positioning surface 33 to the housing hole 27. This opening is blocked by a shield surface 34 at the same time as a shield body 28 is provided converting to the closed position. The capacity control valve 49 and an inclination reducing spring 26 make a swash plate 23 at the minimum inclination when a vehicle engine 20 is stopped, so as to set the shield body 28 at the closed position.

8. 发明专利

JPH10220350A VARIABLE CAPACITY COMPRESSOR 失效
公开(公告)号：JPH10220350A
公开(公告)日：1998-08-18
申请号：JP2656897
申请日：1997-02-10
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： KAWAGUCHI MASAHIRO , SONOBE MASANORI , KUBO YUJI , MIZUFUJI TAKESHI
IPC分类号： F04B49/00 , F04B27/08 , F04B27/14
摘要： PROBLEM TO BE SOLVED: To provide a variable capacity compressor by which a refrigerant can be prevented from being led to flow from an external refrigerant circuit into the inside when operation is stopped. SOLUTION: The capacity control valve 49 of this compressor adjusts the opening of an air supply passage by sensing pressure of inlet refrigerant gas introduced to a pressure sensing chamber. A pressure sensing passage 50 connects the pressure sensing chamber 58 and the intake chamber 38 of the capacity control valve 49 together. The intake chamber 38 is disconnected from an external refrigerant circuit 76 when a disconnecting body 28 is changed over and arranged in a closing position. When a vehicle engine 20 is stopped, the capacity control valve 49 and an inclination angle reducing spring 26 make the disconnecting body 28 arranged in the closing position by recognizing a swash plate 23 as the minimum inclination angle.

9. 发明专利

JPH1047244A POWER TRANSMISSION MECHANISM OF CLUTHLESS VARIABLE CAPACITY COMPRESSOR 失效
公开(公告)号：JPH1047244A
公开(公告)日：1998-02-17
申请号：JP20979996
申请日：1996-08-08
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： KAWAGUCHI MASAHIRO , OKADA MASAHIKO , KAWAMURA KOJI , MURASE MASAKAZU , FUKANUMA TETSUHIKO , KUBO YUJI
IPC分类号： F04B35/00 , F16D9/00
摘要： PROBLEM TO BE SOLVED: To provide a power transmission mechanism of a clutchless variable capacity compressor, which is simple in structure, the function of which is little deteriorated even under the environment of low temperature, and by which fluctuation of load torque on the compressor side can be effectively lightened. SOLUTION: An interposing member 89 comprising a connecting part 91 formed of a metallic material and an elastic deforming part 90 formed of a thermoplastic resin material is disposed between a driving shaft 16 and a pulley 17. The interposing member 89 is connected to one of the driving shaft 16 and the pulley 17, and it is always pressed to the other to be integrally rotated. When the load torque on the driving shaft 16 side fluctuates, the elastic deforming part 90 is elastically deformed. If the load torque becomes excessive, the elastic deforming part 91 is fused by frictional heat produced by the relative sliding of the press-contacting parts.

10. 发明专利

JPH102284A VARIABLE DISPLACEMENT COMPRESSOR AND ITS CONTROL METHOD 失效
公开(公告)号：JPH102284A
公开(公告)日：1998-01-06
申请号：JP15556296
申请日：1996-06-17
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： KAWAGUCHI MASAHIRO , SONOBE MASANORI , KUBO YUJI , FUKANUMA TETSUHIKO
IPC分类号： F04B49/06 , F04B27/14 , F04B27/18 , F04B53/10 , F16K31/06
摘要： PROBLEM TO BE SOLVED: To surely and accurately perform opening control of a capacity control valve by small power. SOLUTION: In the halfway of a supply air passage 48 between a crank chamber 15 and a delivery chamber 38, a capacity control valve 49 for adjusting an opening thereof is provided. In the capacity control valve 49, a pressure sensing chamber 71 communicating with a suction passage 32 is provided, in the pressure sensing chamber 71, a bellows 73 for transmitting changing of a suction pressure to a valve element 67, opening/closing the supply air passage 48, is received. A current of prescribed duty ratio corresponding to a target current value in accordance with an environment of a vehicle is input to a solenoid 87, a given load to the valve element 67 is changed, a preset suction pressure is changed. An input current value to the solenoid 87 is fed back, the input current value is made to gradually coincide with the target current value.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式