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

FR2606088A1 INJECTEUR ELECTROMAGNETIQUE DE CARBURANT ET PROCEDE POUR FABRIQUER UN TEL INJECTEUR 未知
公开(公告)号：FR2606088A1
公开(公告)日：1988-05-06
申请号：FR8714927
申请日：1987-10-28
申请人： HITACHI LTD , HITACHI LTD
发明人： YOKOYAMA MIZUHO , MIZUHO YOKOYAMA , KANAMARU HISANOBU , HISANOBU KANAMARU , KOSUGE TOKUO , TOKUO KOSUGE
IPC分类号： F02M51/08 , F02M61/16 , F02M51/06
摘要： DANS CET INJECTEUR COMPORTANT UNE CULASSE CYLINDRIQUE 2, UNE BOBINE D'ELECTROAIMANT 4 ET UN NOYAU FORMANT STATOR 1, MONTES FIXES DANS LA CULASSE, UN NOYAU MOBILE POUVANT ETRE ATTIRE PAR LE NOYAU 1, ET UN ELEMENT DE SOUPAPE MOBILE 3 POUVANT ETRE APPLIQUE SUR ET ECARTE D'UN SIEGE DE SOUPAPE EN FONCTION DE L'EQUILIBRE ENTRE UNE FORCE ELECTROMAGNETIQUE PRODUITE PAR LA BOBINE ET UNE FORCE PRODUITE PAR UN RESSORT 11 LOGE DANS LE NOYAU 1, CE DERNIER EST LOGE COAXIALEMENT DANS LA CULASSE 2 DE TELLE SORTE QU'UNE PARTIE DU MATERIAU DU NOYAU OU DE LA CULASSE EST REFOULEE PAR DEFORMATION PLASTIQUE DANS UNE GORGE ANNULAIRE 1C MENAGEE DANS LA CULASSE OU LE NOYAU, CE QUI A POUR EFFET QUE CES DEUX ELEMENTS SONT ACCOUPLES ET RETENUS L'UN A L'AUTRE. APPLICATION NOTAMMENT AUX INJECTEURS DE CARBURANT UTILISABLES DANS DES MOTEURS DE VEHICULES AUTOMOBILES.

2. 发明专利

GB2198289B ELECTROMAGNETIC FUEL INJECTOR AND METHOD OF PRODUCING THE SAME 未知
公开(公告)号：GB2198289B
公开(公告)日：1990-07-18
申请号：GB8725271
申请日：1987-10-28
申请人： HITACHI LTD
发明人： YOKOYAMA MIZUHO , KANAMARU HISANOBU , KOSUGE TOKUO
IPC分类号： F02M51/06 , F02M51/08 , F02M61/16
摘要： An electromagnetic fuel injector suitable for use in an automotive engine has a cylindrical yoke constituting a body of the fuel injector, a solenoid coil and a stator core fixedly received in the cylindrical yoke, a movable core adapted to be attracted by the stator core, and a movable valve responsive to the movable core so as to be moved into and out of contact with a fuel injection valve seat in accordance with the balance of force between an electromagnetic force produced by the solenoid coil and a force produced by a spring received in the stator core. The stator core is coaxially received in the cylindrical yoke with a portion of the material of either one of the stator core and the yoke being plastically deformed into an annular groove formed in the opposing surface of the other of the stator core and the yoke. In consequence, the stator core and the yoke are coupled to and held on each other by the contracting force produced by the plastically deformed material in and around the annular groove.

3. 发明专利

DE3567243D1 FUEL INJECTION CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE 未知
公开(公告)号：DE3567243D1
公开(公告)日：1989-02-09
申请号：DE3567243
申请日：1985-06-07
申请人： HITACHI LTD
发明人： KOSUGE TOKUO , KARINO KIMIJI
IPC分类号： F02D41/10 , F02D41/12 , F02D41/34 , F02D41/18
摘要： The invention relates to a method and apparatus for controlling fuel injection of internal combustion engines. … A base injection pulse for regulating an injecting time of an injector is determined by the number of revolutions of an engine and the quantity of an intake air. The base injection pulse is calibrated or compensated as follows;… Ti = Tp(1 + Ka + Kb)… wherein… Ti: a pulse width of the calibrated injection pulse, which determines the injecting time of the injector;… Tp: a pulse width of the base injection pulse;… Ka: a calibration coefficient determined by the level of an acceleration; and… Kb: a calibration coefficient determined by the level of a deceleration preceding to the acceleration.

4. 发明专利

DE3738877A1 未知
公开(公告)号：DE3738877A1
公开(公告)日：1988-05-26
申请号：DE3738877
申请日：1987-11-16
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： SOUMA MASAHIRO , KOSUGE TOKUO , ISHIKAWA TOHRU , KANAMARU HISANOBU , YOKOYAMA MIZUHO , KAMITUMA YASUO
IPC分类号： F02M51/06 , F02M51/08 , F02M61/14 , F02M61/16 , F02M63/00 , F16K31/02 , H01F7/16
摘要： An electromagnetic fuel injector comprising: a movable member with a valve body provided at one end and an armature made of a magnetic material provided at the other end; a cylindrical core made of a magnetic material, the core being disposed in such a manner that the distal end thereof opposes the armature; an electromagnetic coil disposed around the cylindrical core for producing an electromagnetic force between the cylindrical core and the armature when the coil is energized; and guide sections for guiding the movement of the movable member in the axial direction, the guide sections being disposed in the vicinities of the valve body and the armature of the movable member. The guide section provided in the vicinity of the armature comprises a sliding member made of a non-magnetic material and disposed between the armature and the core. The colliding surface of the core and the armature is coated with a nickel layer which serves as an impact absorbing layer and a chromium oxide layer which serves as a surface hardening layer. A seal ring is provided between the outer periphery of a plug portion of the core and the inner periphery of a casing. The yoke is coupled to the core at a location which is closer to a fuel outlet from the seal ring.

5. 发明专利

CA1299038C ELECTROMAGNETIC FUEL INJECTOR AND METHOD OF PRODUCING THE SAME 未知
公开(公告)号：CA1299038C
公开(公告)日：1992-04-21
申请号：CA550233
申请日：1987-10-26
申请人： HITACHI LTD
发明人： YOKOYAMA MIZUHO , KANAMARU HISANOBU , KOSUGE TOKUO
IPC分类号： F02M51/06 , F02M51/08 , F02M61/16 , B05B1/00 , H01F7/16
摘要： An electromagnetic fuel injector suitable for use in an automotive engine has a cylindrical yoke constituting a body of the fuel injector, a solenoid coil and a stator core fixedly received in the cylindrical yoke, a movable core adapted to be attracted by the stator core, and a movable valve responsive to the movable core so as to be moved into and out of contact with a fuel injection valve seat in accordance with the balance of force between an electromagnetic force produced by the solenoid coil and a force produced by a spring received in the stator core. The stator core is coaxially received in the cylindrical yoke with a portion of the material of either one of the stator core and the yoke being plastically deformed into an annular groove formed in the opposing surface of the other of the stator core and the yoke. In consequence, the stator core and the yoke are coupled to and held on each other by the contracting force produced by the plastically deformed material in and around the annular groove. Also disclosed is a method of producing this fuel injector.

6. 发明专利

FR2632019A1 Electromagnetic fuel injector 未知
公开(公告)号：FR2632019A1
公开(公告)日：1989-12-01
申请号：FR8908127
申请日：1989-06-19
申请人： HITACHI LTD , HITACHI AUTOM0OTIVE ENGINEERIN
发明人： SOMA MASAHIRO , KOSUGE TOKUO , ISHIKAWA TORU , KANAMARU HISANOBU , YOKOYAMA MIZUHO , KAMITSUMA YASUO
IPC分类号： F02M51/06 , F02M61/14 , F02M61/16
摘要： The invention relates to an electromagnetic fuel injector comprising a body, an electromagnetic coil, a core plunger serving to close the open end of the body, means for outlet of the fuel which means are provided in the bottom of the body, a movable member having an armature which forms part of a closed magnetic circuit, and a valve body used for opening and closing the fuel outlet, elastic means serving to push the movable member back in the direction in which the valve body closes the fuel outlet and means forming a fuel supply passage. It comprises a sleeve 25 surrounding the outer periphery of the body, a fuel passage formed in the sleeve 25 and surrounding the external peripheral surface of the body 3, an intake passage 28 communicating with the fuel passage and penetrating through the external peripheral surface of the body 3, a passage 24 formed following the intake passage 28 and ending in the external peripheral part of the armature 4 after passing through an internal part of the assembly with a coil 16 and a fuel passage as a bypass from the passage 24 and reaching the fuel injection hole 58 which is open or closed by the valve 6.

7. 发明专利

FR2606830A1 未知
公开(公告)号：FR2606830A1
公开(公告)日：1988-05-20
申请号：FR8715696
申请日：1987-11-13
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： SOUMA MASAHIRO , KOSUGE TOKUO , ISHIKAWA TOHRU , KANAMARU HISANOBU , YOKOYAMA MIZUHO , KAMITUMA YASUO
IPC分类号： F02M51/06 , F02M51/08 , F02M61/14 , F02M61/16 , F02M63/00
摘要： An electromagnetic fuel injector comprising: a movable member with a valve body provided at one end and an armature made of a magnetic material provided at the other end; a cylindrical core made of a magnetic material, the core being disposed in such a manner that the distal end thereof opposes the armature; an electromagnetic coil disposed around the cylindrical core for producing an electromagnetic force between the cylindrical core and the armature when the coil is energized; and guide sections for guiding the movement of the movable member in the axial direction, the guide sections being disposed in the vicinities of the valve body and the armature of the movable member. The guide section provided in the vicinity of the armature comprises a sliding member made of a non-magnetic material and disposed between the armature and the core. The colliding surface of the core and the armature is coated with a nickel layer which serves as an impact absorbing layer and a chromium oxide layer which serves as a surface hardening layer. A seal ring is provided between the outer periphery of a plug portion of the core and the inner periphery of a casing. The yoke is coupled to the core at a location which is closer to a fuel outlet from the seal ring.

8. 发明专利

DE3718784A1 未知
公开(公告)号：DE3718784A1
公开(公告)日：1987-12-10
申请号：DE3718784
申请日：1987-06-04
申请人： HITACHI LTD
发明人： ISHIKAWA TOORU , KOSUGE TOKUO
IPC分类号： F02M51/06 , F02M51/08 , F02M55/04 , F02M61/16 , F02M63/00 , F02M69/46
摘要： An electromagnetic fuel injector for internal combustion engines has a core defining therein a central bore and a fuel adjuster disposed therein and having an upstream end spaced downstream from an inlet end of the core. The central bore includes an inlet portion extending between the inlet end of the core and the upstream end of the fuel adjuster and providing an inner peripheral surface operative to guide the fuel in a laminar flow toward and into the fuel adjuster for thereby minimizing the occurrence of pulsated fuel pressure variation and voids which took place heretofore to cause cavitation in the fuel passage in the injector, whereby the range of fuel injection control can be widened.

9. 发明专利

DE3271294D1 CARBURETOR WITH STARTING SYSTEM 未知
公开(公告)号：DE3271294D1
公开(公告)日：1986-07-03
申请号：DE3271294
申请日：1982-02-11
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： KARINO KIMIJI , KOSUGE TOKUO , SOUMA MASAHIRO
IPC分类号： F02M1/10 , F02M1/04
摘要： A carburetor including a main fuel system and a low-speed fuel system having a throttle valve shaft located parallel to a row of cylinders located in side-by-side relationship substantially perpendicular to the direction of movement of a vehicle. The carburetor is connected to a suction manifold in such a manner that a float chamber is interposed between the throttle valve shaft and the row of cylinders.

10. 发明专利

DE3878599T2 未知
公开(公告)号：DE3878599T2
公开(公告)日：1993-09-23
申请号：DE3878599
申请日：1988-06-24
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： OKAMOTO YOSHIO , NAKAMURA YOZO , UCHIYAMA KYOICHI , WATANABE HARUO , KOSUGE TOKUO , ONISHI AKIRA , TERASAKI AKANE , ANDO HIROYUKI , HAMASHIMA EIJI
IPC分类号： F02M51/06 , F02M61/16 , F02M61/20 , F02M63/00
摘要： An electromagnetic fuel injection valve in which an area of an annular gap formed by a ball valve (6) and a valve seat (9) when the ball valve (6) is lifted is made smaller than cross sectional area of grooves (50) provided on a fuel swirling element (37) which gives fuel supplied a swirling force and further is made larger than a cross sectional area of a fuel injection port (8), whereby the fuel is injected with an excellent atomizing characteristic.

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