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1. 发明专利

JPH10318406A CONTROL VALVE OF COMPRESSOR 失效
公开(公告)号：JPH10318406A
公开(公告)日：1998-12-04
申请号：JP12455997
申请日：1997-05-14
申请人： TOYODA AUTOMATIC LOOM WORKS , DENSO CORP
发明人： MIURA SHINTARO , KAWAGUCHI MASAHIRO , MIZUFUJI TAKESHI , KUBO YUJI , NOSAKA MICHIYASU , MIYAGAWA KAZUHITO , MIURA SHINYA
IPC分类号： F04B39/00 , F04B27/14 , F04B49/06 , F16K31/06
摘要： PROBLEM TO BE SOLVED: To prevent a coil terminal from being damaged by a terminal edge by connecting the terminal of a solenoid coil to a connecting part installed in a terminal, and installing a guide part at the terminal side on a base surface, then leading the coil terminal to the connecting part through the guide part. SOLUTION: In a coil unit 90 of a solenoid for a capacity control valve, guide parts 104 and 105 are installed on a base surface of a terminal base 93, and coil terminals 92b and 92c are led to upper sides of both terminals 94 and 95 through guide surfaces 104b and 105b at tips of these guide parts 104 and 105. Since the guide parts 104 and 105 have height higher than those of the terminals 94 and 95, even if unnecessary external force acts on the terminals 92b and 92c during assembling of the coil unit 90, the terminals 92b and 92c are supported at a relatively high position by the guide surfaces 104b and 105b, whereby they are not forcibly pressed to edges 94b and 95b of the terminals 94 and 95, damage to the terminal due to terminal edge is prevented.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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.

7. 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.

8. 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.

9. 发明专利

JPH09250452A LUBRICATING STRUCTURE IN COMPRESSOR 失效
公开(公告)号：JPH09250452A
公开(公告)日：1997-09-22
申请号：JP6309496
申请日：1996-03-19
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： MURASE MASAKAZU , FUKANUMA TETSUHIKO , OKADA MASAHIKO , KUBO YUJI
IPC分类号： F04B39/08 , F04B27/08 , F04B27/10 , F04B27/14 , F04B39/02
摘要： PROBLEM TO BE SOLVED: To prevent the wear of a swash plate in a compressor which controls an inclination angle of the swash plate according to the pressure difference between the pressure in a crank chamber and the pressure acting to the piston tip end face. SOLUTION: An annular slide contact face 232 is formed on the circumferential side of the front and back faces of a swash plate 23, and a reference hole 232 is penetrated more inside than the slide contact face 232 so as to be parallel to an axial hole 231 passing through a rotary shaft 18. The reference hole 234 is set at a position more outward off than between both guide pins 26 and 27. The reference hole 234 is utilized for grinding processing of the swash plate 23, for example, grinding the slide contact face 232. The center shaft of a fixing jig not illustrated is passed through the axial hole 231, and the positioning pin of said fixing jig is passed through the reference hole 234.

10. 发明专利

JP2000303951A PISTON TYPE COMPRESSOR 失效
公开(公告)号：JP2000303951A
公开(公告)日：2000-10-31
申请号：JP11222799
申请日：1999-04-20
申请人： TOYODA AUTOMATIC LOOM WORKS
发明人： FUKANUMA TETSUHIKO , KUBO YUJI , OKUNO TAKUYA , KAWAGUCHI MASAHIRO
IPC分类号： F04B27/08 , F04B27/10 , F16C19/30
摘要： PROBLEM TO BE SOLVED: To provide a piston type compressor of a constitution capable of restraining the occurrence of noise and vibration caused by the inclination of a piston driving part with respect to a housing. SOLUTION: A thrust bearing 30 is interposed between a front housing 11 and each piston driving part 16 through 18 for supporting thrust load. An annular housing side pressure bearing seat 34 is provided for the front housing 11 for abutting against, and supporting the housing side race 31 of the thrust bearing 30. An annular piston driving side pressure bearing seat 35 is provided for the piston driving parts 16 through 18 for abutting against, and supporting the piston driving side race 32 of the thrust bearing 30. The housing side pressure bearing seat 35 and the piston driving side pressure bearing seat 35 are different in diameter.

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