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1. 发明专利

JPS63120807A LUBRICATING OIL HEATING DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS63120807A
公开(公告)日：1988-05-25
申请号：JP26657186
申请日：1986-11-11
申请人： TOYOTA MOTOR CORP , NIPPON SOKEN
发明人： KAWAI NOBUAKI , SATO AKIRA , ITO TOSHIHIKO , TANAKA TAKESHI , WAKAYAMA MASAO
IPC分类号： F01M5/00 , F01M7/00
摘要： PURPOSE:To reduce a driving force and ensure a necessary amount of lubricating oil, by providing oil heaters on the side of inlets of an oil pump and a main oil hole, and carrying out on/off control of both the oil heaters according to specific operating conditions of an engine. CONSTITUTION:In a lubricating oil line for an internal combustion engine, a first oil heater 11 is provided on the upstream side of an oil pump, and a second oil heater 12 is provided on the downstream side of the oil pump and on the inlet side thereof. Both the oil heaters 11 and 12 are connected to an on/off control device 13. The on/off control device 13 comprises a CPU 18 for generating operation signals to relays 16 and 17 in receipt of the output signals from a temperature sensor 14 of the engine or the like and an engine key 15. With this arrangement, the first oil heater 11 is turned off upon cranking, and is turned on upon preheating at a vary low temperature. The second oil heater 12 is turned on at a very low temperature, and is turned off at a normal low temperature.

2. 发明专利

JPS62248812A OIL CIRCULATION DEVICE 失效
公开(公告)号：JPS62248812A
公开(公告)日：1987-10-29
申请号：JP9291786
申请日：1986-04-22
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： WAKAYAMA MASAO , TANAKA TAKESHI , ITO TOSHIHIKO , SATO AKIRA
IPC分类号： F01M1/16 , F01M5/02
摘要： PURPOSE:To prevent the startability of an oil pump from becoming worse due to a load by relieving the discharge side of the oil pump when the oil temperature is less than a fixed value and the engine is in a starting engine speed, or when the engine is in an idling engine speed and the oil pressure is more than a fixed value. CONSTITUTION:An oil pump 1 sucks in oil from an oil pan 9, and supplies oil through a circulation passage 7 to the lubricating part 6 of an engine. Near the discharge opening of the oil pump 1, a return passage 8 branches off from the circulation passage 7, and on the return passage 8 is provided a spool-type electro-magnetic relief valve 2. An electro-magnetic coil 208 for driving the electro-magnetic relief valve 2 is controlled by a microcomputer 3, and according to detection values from an oil temperature sensor 31, engine speed sensor 32 and an oil pressure sensor 33, when the oil pressure is not less than 5 kg/cm , and the engine is in an idling speed, and moreover, the oil pressure is not less than 1 kg/cm , or the oil temperature is approximately -15 deg.C, and the engine speed is less than 800 rpm, the valve 2 is caused to open.

3. 发明专利

JPS62111110A OIL HEATING DEVICE 失效
公开(公告)号：JPS62111110A
公开(公告)日：1987-05-22
申请号：JP25067785
申请日：1985-11-11
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： YORITA HIROSHI , ITO TOSHIHIKO , TANAKA TAKESHI , SATO AKIRA
IPC分类号： F01M5/00
摘要： PURPOSE:To reduce oil viscosity at low temperature and lessen a pump load by providing a heater on a bypass valve laid in parallel with a suction pipe running from an oil pan to an oil pump, and feeding an electric current to said heater during the time of turning on a key switch to start finish. CONSTITUTION:In parallel with an oil suction pipe 7 running from an oil pan 11 to an oil pump 8, there is a bypass pipe 6 provided. And within the bypass pipe 6 are provided a heater 5 at the side of an oil pan 11, and an oil temperature detecting thermister 4 at the side of an oil pump 8, respectively. An electric current supply to the heater 5 is controlled by a control circuit 3 and concurrently with a switching-on signal from a key switch 2, the current supply starts. When a starter 9 is supplied with an electric current and this current supply is stopped after the running thereof, a current supply to the heater 5 is stopped.

4. 发明专利

JPS6365110A DISCONNECTABLE ENGINE OIL HEATING UNIT AND ENGINE LUBRICATION DEVICE WITH SAID UNIT 失效
公开(公告)号：JPS6365110A
公开(公告)日：1988-03-23
申请号：JP20672486
申请日：1986-09-04
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： TANAKA TAKESHI , ITO TOSHIHIKO , WAKAYAMA MASAO , SATO AKIRA
IPC分类号： F01M5/00 , F01M5/02
摘要： PURPOSE:To facilitate the check-up of an oil heater by allowing a metal body formed in a bottomed cylindrical shape to be engaged liquid-tight and disconnectably with the opening of an oil sump forming means, with a PTC electric heater incorporated disconnectably into said body. CONSTITUTION:A circular opening 36 nearly in alignment with an enlarged section 28 is drilled on the vertical end-wall 30 of an oil pan 12 constituting an oil samp forming means, with a mounting socket 38 incorporated in one body along said opening 36. An oil heating unit 40, having a nearly cylindrical body 42, is engaged liquid-tight and disconnectably with the mounting socket 38 via O-ring 50. A PTC electric heater 52 is fitted liquid-tight and disconnectably on the opposite side of the opening 36 of the body 42 so as to be provided with an external electric power via center electrode 64 positioned coaxially within the body 42 by means of a lead wire 68 and an insulating resin 62.

5. 发明专利

JPS6380009A ENGINE OIL HEATING DEVICE 失效
公开(公告)号：JPS6380009A
公开(公告)日：1988-04-11
申请号：JP22219586
申请日：1986-09-22
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： TANAKA TAKESHI , ITO TOSHIHIKO , WAKAYAMA MASAO , SAKAKIBARA KOICHI , SATO AKIRA , KAWAI NOBUAKI
IPC分类号： F01M5/02 , F01M5/00
摘要： PURPOSE:To prevent useless power consumption by stopping electricity to a heater at the time of an overdischarge of a battery, a raise of the revolutional number and breakage of the heater based on an oil temperature, an engine revolutional number, a battery voltage and an impressed voltage to an oil heating heater. CONSTITUTION:The first comparison circuit F puts out high level at the time of non-overdischarge when the voltage of a battery A is more than a prescribed value, and the second comparison circuit G puts out high level when an engine oil temperature detecting device D detects a temperature lower than a prescribed temperature. On the other hand, the third comparison circuit H puts out high level when an engine revolutional number detecting device E detects a number more than a prescribed revolutional number, and the fourth comparison circuit I puts out high level when an impressed voltage to a heater C is less than the prescribed value. A closing means L for controlling electricity to the heater C is turned on at an AND condition of the first and the second comparison circuits and turned off at an OR condition of the third and the fourth comparison circuits.

6. 发明专利

JPS6345468A GLOW PLUG SYSTEM FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS6345468A
公开(公告)日：1988-02-26
申请号：JP18784886
申请日：1986-08-12
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： WAKAYAMA MASAO , TANAKA TAKESHI , ITO TOSHIHIKO , SATO AKIRA , KAWAI NOBUAKI
IPC分类号： F01M5/00 , F01M5/02 , F02M31/12 , F02P19/02
摘要： PURPOSE:To provide a glow plug system which decreases the drive force of an oil pump by heating oil by means of a glow plug resistor during the starting of an internal combustion engine, improves the starting of the engine at a low temperature, and protects a fuel filter element by heating fuel. CONSTITUTION:With a key switch turned ON during low temperature running, a KEY signal 16 and a water temperature signal 14 are inputted to a glow plug control circuit 2, and according to a water temperature, the voltage of a battery 1 is applied on a glow plug resistor 3 and a glow plug 7 through a main relay 4 for heating. In this case, the glow plug resistor 3 heats oil. Upon completion of preheat and during starting cranking, an oil pump drive force is decreased due to heating oil. During afterglow, a battery voltage is applied on the glow plug resistor 3 and the glow plug 7 through the main relay 4 and a sub-relay 5. When a water temperature and the number of revolutions are increased to a specified value or more, control of after-glow is completed. A PTC (positive temperature characteristics) heater serving as the glow plug resistor 3 heats fuel in a filter to protect a filter element.

7. 发明专利

JPS6312813A OIL SUPPLYING SYSTEM FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS6312813A
公开(公告)日：1988-01-20
申请号：JP15629186
申请日：1986-07-04
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： WAKAYAMA MASAO , TANAKA TAKESHI , ITO TOSHIHIKO , SATO AKIRA , KAWAI NOBUAKI
IPC分类号： F01M1/16 , F01M5/00
摘要： PURPOSE:To improve the low temperature starting performance of an internal combustion engine, by providing a means for limiting an oil flow rate and a means for heating the oil at the suction side of an oil pump to heat efficiency only a small amount of oil to lower viscosity of the oil. CONSTITUTION:Oil in a tank 1 is supplied to the respective parts of an engine 5 through a strainer 2 and a pipe 3 from a pump 4 and returned to the tank 1. In this constitution, means, such as a shut valve 6, for limiting an oil flow rate is provided in the suction side pipe of the pump 4, and a heater 7 is provided in a pipe line between the shut valve 6 and the pump 4. In case that cooling water temperature sensed by a sensor S is below the preset level, electricity is sent to VSV valve 9 by a controller 11 so as to actuate vacuum in a diaphragm chamber 8 for shutting said pipe 3 by said shut valve 6, and at the same time electricity is sent to the heater 7. Thereby, only a small amount of oil is heated efficiency to lower viscosity of the oil.

8. 发明专利

JPS63186537A VOLTAGE REGULATOR FOR VEHICLE CHARGING GENERATOR 失效
公开(公告)号：JPS63186537A
公开(公告)日：1988-08-02
申请号：JP1796387
申请日：1987-01-28
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： WAKAYAMA MASAO , SAKAKIBARA KOICHI , SATO AKIRA , KAWAI NOBUAKI
IPC分类号： H02J7/16

9. 发明专利

JPH0584808B2 失效
公开(公告)号：JPH0584808B2
公开(公告)日：1993-12-03
申请号：JP15629186
申请日：1986-07-04
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： WAKAYAMA MASAO , TANAKA TAKESHI , ITO TOSHIHIKO , SATO AKIRA , KAWAI NOBUAKI
IPC分类号： F01M1/16 , F01M5/00

10. 发明专利

JPS6336012A DEVICE FOR PREHEATING LUBRICATING OIL FOR DIESEL ENGINE 失效
公开(公告)号：JPS6336012A
公开(公告)日：1988-02-16
申请号：JP17662986
申请日：1986-07-29
申请人： NIPPON SOKEN , DENKI KAGAKU KOGYO KK
发明人： TANAKA TAKESHI , ITO TOSHIHIKO , WAKAYAMA MASAO , SATO AKIRA , KAWAI NOBUAKI
IPC分类号： F01M5/00 , F01M5/02 , F02B3/06 , F02P19/02
摘要： PURPOSE:To dispense with an exclusive control circuit related to a lubricating oil heater for cost reduction by controllably opening and closing a means for supplying and stopping current to said heater according to the output signal of a glow plug controlling circuit. CONSTITUTION:When a key switch 25 is connected to a running terminal 27, a main relay 11, a sub-relay 12 and a PTC heater relay 13 are excited by a glow plug controlling circuit 10 to start the supply of current to a glow plug 22 and a PTC relay 30. Then, current flowing through a current sensor 21 and the terminal voltage of glow plug 22 are applied to the controlling circuit 10 to obtain the resistance value (temperature) of glow plug 22 so that the relay 11 is controllably turned on and off to put the temperature within a certain range. Also, a preheating time up to the start of a starter 18 is calculated according to the output of a water temperature sensor 29, while the sub-relay 12 is turned off to interrupt current to a PTC heater 30 when cooling water temperature reaches a predetermined temperature.

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