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1. 发明专利

GB2311336A8 Distributor type fuel injection pump 未知
公开(公告)号：GB2311336A8
公开(公告)日：1997-10-06
申请号：GB9606121
申请日：1996-03-22
申请人： NIPPON DENSO CO
发明人： SHINOHARA YUKIHIRO , NAGAYA KOUICHI , AKIYAMA YOSHINORI , NAGANUMA TAKAO , NISHIMURA HIROYUKI , KANAMORI HIROYASU
IPC分类号： F02M41/14 , F02M59/36 , F02M59/46 , F02M63/00

2. 发明专利

GB2311336A Distributor type fuel injection pump 未知
公开(公告)号：GB2311336A
公开(公告)日：1997-09-24
申请号：GB9606121
申请日：1996-03-22
申请人： NIPPON DENSO CO
发明人： SHINOHARA YUKIHIRO , NAGAYA KOUICHI , AKIYAMA YOSHINORI , NAGANUMA TAKAO , NISHIMURA HIROYUKI , KANAMORI HIROYASU
IPC分类号： F02M41/14 , F02M59/36 , F02M59/46 , F02M63/00
摘要： A distributor type fuel injection pump for internal combustion engines includes a spill valve 50 for returning fuel in a fuel pressure chamber 21 formed in a distributor rotor 13 to a fuel tank when the supply of fuel to an injector is to end. The spill valve includes a needle 52 slidably disposed in a cylinder 12 supporting therein the distributor rotor to selectively establish and block fluid communication between a first spill path 17, 15, 55 connected to the fuel pressure chamber 21 and a second spill path including a fuel gallery 14 located around the cylinder and connected to the outside through a pump housing 4. The spill valve is disposed in a plane perpendicular to the axis of the rotor and controls the connection of the chamber 55 to the gallery 14.

3. 发明专利

DE19611429A1 Distributor- fuel injection pump for IC engine 未知
公开(公告)号：DE19611429A1
公开(公告)日：1996-09-26
申请号：DE19611429
申请日：1996-03-22
申请人： NIPPON DENSO CO
发明人： SHINOHARA YUKIHIRO , NAGAYA KOUICHI , AKIYAMA YOSHINORI , NAGANUMA TAKAO , NISHIMURA HIROYUKI , KANAMORI HIROYASU
IPC分类号： F02M41/14 , F02M59/36 , F02M59/46 , F02M63/00
摘要： The injection pump has a cylindrical section (12) with fuel return ducts and containing an element (13) rotating at the engine speed to control the distribution of fuel to the cylinders. The rotating element has a fuel pressure chamber (21) and is linked to a return valve. Excess fuel is dumped via return ducts (15,27) with short paths. A main dump valve (50) operates a plunger onto a valve seat to limit the fuel feed between the pump and the cylinders and controls the connection between the return ducts with a minimum of path length.

4. 发明专利

DE4443004A1 Solenoid valve for opening and closing fluid channel 未知
公开(公告)号：DE4443004A1
公开(公告)日：1995-06-08
申请号：DE4443004
申请日：1994-12-02
申请人： NIPPON DENSO CO
发明人： KANAMORI HIROYASU , TANI TAKIO
IPC分类号： F02M41/12 , F02M51/00 , F02M51/06 , F02M59/46 , F16K31/06
摘要： A solenoid valve has a plunger (36) that moves axially with an elastic element (37) to guide it. There is a magnetic plate (43) with a number of axial holes in it, joined to the plunger and therefore moving with it. The solenoid (44) moves the plate against the force of the elastic element. The electrical connections (46) to the solenoid fit inside the holes in the plate. An insulating sleeve sits on each connection to prevent contact with the plate, made from non-magnetic and abrasion-resistant material, such as ceramic. There are more axial holes in the plate than just the two used for the connectors.

5. 发明专利

GB2311336B Distributor type fuel injection pump 未知
公开(公告)号：GB2311336B
公开(公告)日：1998-09-02
申请号：GB9606121
申请日：1996-03-22
申请人： NIPPON DENSO CO
发明人： SHINOHARA YUKIHIRO , NAGAYA KOUICHI , AKIYAMA YOSHINORI , NAGANUMA TAKAO , NISHIMURA HIROYUKI , KANAMORI HIROYASU
IPC分类号： F02M41/14 , F02M59/36 , F02M59/46 , F02M63/00

6. 发明专利

JPH07269438A FLOW PASSAGE OPENING/CLOSING VALVE 失效
公开(公告)号：JPH07269438A
公开(公告)日：1995-10-17
申请号：JP6281294
申请日：1994-03-31
申请人： NIPPON DENSO CO
发明人： KANAMORI HIROYASU
IPC分类号： F02D1/02 , F02M41/12 , F02M51/00
摘要： PURPOSE:To obtain a solenoid valve suitable for a fuel injection which can reduce a closing valve stroke, elongate an opening valve stroke, and speedily reduce the pressure in a flow passage. CONSTITUTION:A valve spool 60 is energized in the opening direction by means of a first spring 64. A stopper sleeve 70 fitted outside the valve spool 60 is so arranged that a lower portion is always faced to a valve chamber 58. A second spring 80 is engaged therewith for energizing in a closing direction. When an electromagnetic coil is switched OFF, a short closing valve stroke L1 is obtained for closing the valve with satisfactory responsiveness (a). When the pressure inside the valve chamber 58 is increased during closing of the valve, the stopper sleeve 70 is pressed upward (c). An opening valve stroke shows a large stroke of L1+L2. The pressure inside the pump chamber can be abruptly reduced.

7. 发明专利

JPH07158760A SOLENOID VALVE 失效
公开(公告)号：JPH07158760A
公开(公告)日：1995-06-20
申请号：JP30414793
申请日：1993-12-03
申请人： NIPPON DENSO CO
发明人： KANAMORI HIROYASU , TANI TAKIO
IPC分类号： F02M41/12 , F02M51/00 , F02M51/06 , F02M59/46 , F16K31/06
摘要： PURPOSE:To provide a small-sized solenoid valve which has good responsiveness and can reduce the power consumption. CONSTITUTION:A needle element 36 of a solenoid valve 30 is energized by a compressive coil spring 37 in the direction of valve opening. A push rod 41 has one end contacted with the needle 36 and the other end with an armature 43. The armature 43 is formed in a disc from a magnetic substance, provided with a through hole 43a to admit insertion of a terminal 46, and extends outward in radial direction further from the through hole 43a. When current supply to a coil 44 is shut off, the needle 36 is energized in the direction of valve opening - when current is fed to the coil 44, the needle 36 is energized in the direction of valve closing. Because the armature 43 is free from restriction in formation due to the installing position of the terminal 46, it is possible to increase the area of armature in the radial direction, and the amount of flux passage generated by the coil 44 can be increased, so that a large attracting force will be produced.

8. 发明专利

JPH05149465A SOLENOID VALVE 失效
公开(公告)号：JPH05149465A
公开(公告)日：1993-06-15
申请号：JP30641391
申请日：1991-11-21
申请人： NIPPON DENSO CO
发明人： KANAMORI HIROYASU
IPC分类号： F16K31/06
摘要： PURPOSE:To provide a solenoid valve which is free from violent collision sound and severe damage of a valve seat surface when a valve face is seated onto a valve seat. CONSTITUTION:A solenoid valve is so constituted that, when energized, a valve face 5a provided for the tip end of a valve stem 5b is seated onto a valve seat 6a provided for the tip end of a main body 6 by the magnetic force of an electric magnet 2, and when deenergized, the valve face 5a is separated from the valve seat 6a by the elastic force of a return spring 1. Let a space between the valve face 5a and the valve seat 6a be B when energized, for example, the valve face 5a comes close to the valve seat 6a, and when the distance to the valve seat 6a is equal to (1/2 to 1/3)x B, in order to decrease the approaching speed of the valve face 5a to the valve seat 6a, a cylinder chamber 2c is provided for the electric magnet 2, and a damping piston 3 sliding within the cylinder chamber 2c is provided for the valve stem 5b.

9. 发明专利

JPS63173842A FUEL INJECTION DEVICE 失效
公开(公告)号：JPS63173842A
公开(公告)日：1988-07-18
申请号：JP345887
申请日：1987-01-09
申请人： NIPPON DENSO CO
发明人： OMORI TOSHIHIKO , TOMIJIMA HITOSHI , NISHIMAKI HIROAKI , KANAMORI HIROYASU
IPC分类号： F02M57/02
摘要： PURPOSE:To effect high-speed operation in a control device for opening and closing a back pressure passage in a unit injector and thereby controlling an injection timing and an injection quantity, by providing a pressure receiving portion of a main valve of the control device and a control valve for controlling the pressure in a back pressure chamber of the main valve. CONSTITUTION:A unit injector includes a control device 23 integrally formed with a pressure cylinder for opening and closing a discharge passage 45 opened at its one end to a pressure chamber and thereby controlling an injection timing and an injection quantity. The control device 23 comprises a main valve 30 adapted to receive the pressure in the discharge passage 45 as a valve opening pressure, a back pressure chamber 52 for maintaining a valve closing pressure of the valve 30 and a control valve 24 for controlling the pressure in the back pressure chamber 52. A pressure receiving area of the main valve 30 under the closed condition on the back pressure chamber 52 side is set to be greater than that on the discharge passage 45 side, and a pressure receiving area of a valve member 31 of the control valve 24 under the closed condition on a fluid chamber 317 side is set to be greater than that on the back pressure chamber 52 side.

10. 发明专利

JPH07174055A QUANTITY ADJUSTING SOLENOID VALVE FOR FUEL INJECTOR 失效
公开(公告)号：JPH07174055A
公开(公告)日：1995-07-11
申请号：JP32017193
申请日：1993-12-20
申请人： NIPPON DENSO CO
发明人： KANAMORI HIROYASU
IPC分类号： F02M41/12
摘要： PURPOSE:To improve the fuel injection cut by increasing the stroke of a valve element when the valve is opened, in comparison with the ordinary case, without utilizing the pressure of the fuel which flows into a low pressure chamber from a high pressure chamber when the valve is opened. CONSTITUTION:As for a solenoid valve 32 which is constituted so that a spool 54 for opening and closing a fuel passage 34 is energized in the valve opening direction by the first spring 56, while in the valve closing direction, by the second spring 64, and the energizing force of the second spring 64 is regulated so that the opening degree in the ordinary case is set at the initial opening degree through the contact between an energizing force transmission member 66 and a projection 62a, a rod-shaped projection 74 is formed on the energizing force transmission member 66, and an accommodation hole 76 for accommodating the rod-shaped projection 74 in a slidable manner and an introducing hole 78 for introducing the fuel in the fuel passage 34 into the accommodation hole 76 are formed on the spool 54. Accordingly, when the valve is closed, the energizing force transmission member 66 is pushed up by the high pressure fuel in a pressure chamber 16, and the spool 54 is largely raised in comparison with the ordinary case, immediately after the valve opening.

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