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

DE19504849A1 未知
公开(公告)号：DE19504849A1
公开(公告)日：1996-08-22
申请号：DE19504849
申请日：1995-02-15
申请人： BOSCH GMBH ROBERT
发明人： POTZ DETLEV DR ING DR , RODRIGUEZ-AMAYA NESTOR DIPL IN , LEWENTZ GUENTER DIPL ING , MAIER RALF DIPL ING , KAMPMANN STEFAN DR ING , GORDON UWE DIPL ING , KREH ANDREAS DIPL ING
IPC分类号： F02M47/00 , F02M45/12 , F02M47/02 , F02M47/06 , F02M61/04 , F02M61/08 , F02M61/16 , F02M61/18 , F02M61/20 , F02M63/02 , F02M51/06
摘要： A fuel injection device for internal combustion engines with a high-pressure fuel pump (1) which conveys fuel from a low-pressure chamber (3) through a feed pipe (5) into a high-pressure collecting chamber (common rail) (7) which is connected via high-pressure pipes (9) to the individual injection valves (11) projecting into the combustion chamber of the engine to be fuelled. To permit variable injection cross-sections at the injection valves (11), the latter take the form of injection valves with an outwardly open valve member (17) via the controllable opening movement towards the combustion chamber of which it is possible to set a variable injection cross-section at the injection valve (11).

2. 发明专利

DE4444482A1 未知
公开(公告)号：DE4444482A1
公开(公告)日：1996-06-27
申请号：DE4444482
申请日：1994-12-14
申请人： BOSCH GMBH ROBERT
发明人： RODRIGUEZ-AMAYA NESTOR DIPL IN , FUCHS WALTER DR , SCHNEIDER GERHARD DIPL ING DR , GREIF HUBERT DIPL PHYS DR , CZERWINSKI KLAUS
IPC分类号： H01F1/14 , H01F1/147 , C22C38/10 , C22C38/06
摘要： The invention concerns a soft magnetic material which, in addition to iron and cobalt, contains at least one further alloy additive in order to obtain high saturation induction with at the same time high resistivity and good machinability. This is attained by an addition of cobalt which is reduced with respect to known alloys to between 5 and 20 mass %, with the simultaneous addition of an aluminium alloy component and preferably other, manganese or vanadium alloy components.

3. 发明专利

DE4041538A1 Circuit controlling injection valves of IC engine - with amount determination circuit for fuel injected which specifies control pulse length of injection valves depending on RPM of engine and other parameters 未知
公开(公告)号：DE4041538A1
公开(公告)日：1992-06-25
申请号：DE4041538
申请日：1990-12-22
申请人： BOSCH GMBH ROBERT
发明人： RODRIGUEZ-AMAYA NESTOR DIPL IN , LAUVIN PIERRE
IPC分类号： F02D41/00 , F02D41/14 , F02D41/34 , F02D45/00
摘要： For the compensation of a varying relative angular setting of the shafts (KW,NW), resulting operationally and/or positionally specific, during one or more revolutions, between the crankshaft (KW) and the camshaft (NW) of the IC engine (5). The value representing the crankshaft rpm (nKW) supplied to the amount determination circuit (2) is corrected by means of a correction factor (K). The corrected crankshaft rpm (n star) is determined according to the equation;- n star = nKW.K whereby nKW is the crankshaft rpm and K is the correction factor. For the determination of the correction value (K), the actual camshaft rpm (nFORD NW) in the delivery time period (tFORD) of the corresp. injection valve, is determined and is placed in the relationship for the crankshaft rpm (nKW). USE/ADVANTAGE - Circuit arrangement for control of injection valves of IC engine. Dependent on operation and position specific variables, continuously respectively correct control pulse lengths are determined and associated correct amounts of fuel are injected.

4. 发明专利

DE4339948A1 未知
公开(公告)号：DE4339948A1
公开(公告)日：1995-06-01
申请号：DE4339948
申请日：1993-11-24
申请人： BOSCH GMBH ROBERT
发明人： RODRIGUEZ-AMAYA NESTOR DIPL IN , FUCHS WALTER DR , DUTT ANDREAS , VELDTEN BURKHARD DIPL ING
IPC分类号： F02M41/14 , F02M59/36 , F02M59/44
摘要： In a fuel injection pump of the distributor type, a solenoid valve is provided in the distributor and the valve member of this solenoid valve is supported in an axial bore of the distributor and actuated by a magnet fixed to the housing in order to block the connection between a pump working space of the distributor-type injection pump and a relief space during an intended high-pressure injection phase. Inherent in its construction, a distributor of such a fuel injection pump has a certain axial play in its mounting and this has an effect on the actuating travel of the valve member in the distributor in relation to the fixed electromagnet. In order to avoid changes in the magnetic properties, which can arise due to this axial association, part of the magnetic circuit in the form of a magnet plate is displaceable together with the distributor, with the result that the position of an armature connected firmly to the valve member relative to this part of the magnet core, with which it forms the working air gap, does not change depending on the axial position of the distributor, and the magnetic properties of the solenoid valve are thus maintained irrespective of the axial position of the distributor.

5. 发明专利

DE4004110A1 Magnetic valve controlled fuel pump for diesel engine - uses detected shaft rotation markings to provide control signals for magnetic valve 未知
公开(公告)号：DE4004110A1
公开(公告)日：1991-08-14
申请号：DE4004110
申请日：1990-02-10
申请人： BOSCH GMBH ROBERT
发明人： SIEBERT HANS-JOACHIM , GRAF HERBERT DIPL ING , RODRIGUEZ-AMAYA NESTOR DIPL IN , SCHMITT ALFRED DR ING DR , TAUSCHER JOACHIM DIPL ING , ZIMMERMANN WERNER DR ING DR , KARLE ANTON DIPL ING , LAUVIN PIERRE
IPC分类号： F02D41/40 , F02B1/04 , F02B3/06 , F02D41/34 , F02D41/38 , F02M51/00
摘要： The magnetic valve controlled fuel pump (10) for a diesel engine has a pump piston (15) driven by the engine camshaft (60) for feeding the fuel under pressure, with a magnetic valve (20) receiving control signals for defining the beginning and end of the fuel feed. The control signals are supplied by counting markings carried by a shaft, with interpolation between the markings for a momentary engine revs determined immediately prior to the interpolation. Pref. the control signals for the magnetic valve (20) are dependent on the momentary engine revs (n), the fuel feed angle and the beginning of the fuel feed.

6. 发明专利

DE4004107A1 Diesel engine fuel pump electromagnetic control valve - has control signals supplied to valve corrected for valve switching times 未知
公开(公告)号：DE4004107A1
公开(公告)日：1991-08-14
申请号：DE4004107
申请日：1990-02-10
申请人： BOSCH GMBH ROBERT
发明人： SIEBERT HANS-JOACHIM , GRAF HERBERT DIPL ING , RODRIGUEZ-AMAYA NESTOR DIPL IN , SCHMITT ALFRED DR ING DR , TAUSCHER JOACHIM DIPL ING , ZIMMERMANN WERNER DR ING DR , KARLE ANTON DIPL ING , BUISSON DOMINIQUE , HEHN LUCIEN , LAUVIN PIERRE , PAGANON HENRY
IPC分类号： F02D41/20 , F02B3/06 , F02D41/38 , F02D41/40 , F02D45/00 , F02M51/00
摘要： The fuel pump (10) is controlled by an electromagnetic control valve (20) receiving control signals from an electronic control stage (30), in dependence on monitored engine operating parameters (n,T,L) for determining the beginning and end of the fuel injection for each engine cylinder. The valve control signals are supplied in dependence on the calculated fuel injection start point and the duration of the fuel injection interval, taking into account the switching times of the electromagnetic valve (20). Pref. the valve switching times are stored in the electronic control stage (30) and allow the valve control signals to be supplied in advance of the actual required beginning and end points for the fuel injection.

7. 发明专利

DE3523536A1 Electrically controlled fuel injection pump for internal combustion engines 未知
公开(公告)号：DE3523536A1
公开(公告)日：1986-03-27
申请号：DE3523536
申请日：1985-07-02
申请人： BOSCH GMBH ROBERT
发明人： EBLEN EWALD DIPL ING DR , HOFMANN KARL , HOLZGREFE VOLKER DIPL ING , PIGEROULET JEAN , RODRIGUEZ-AMAYA NESTOR DIPL IN , SIMON NIKOLAUS DIPL ING DR , TRACHTE DIETRICH DIPL ING , WEISS FRIEDRICH DIPL ING , ZIEGLER EWALD DIPL ING
IPC分类号： F02B3/06 , F02M57/02 , F02M59/36 , F02M59/46 , F02M63/00 , F02M51/04
摘要： The injection pump (10) has a pump piston (13) driven with constant stroke, which pumps fuel under injection pressure to an injection nozzle (16) for as long as an electrically operated spill valve (27) blocks the flow of fuel spilling from the pump working chamber (21) via a spill duct (28) to a low pressure chamber (25). The spill valve (27) is a needle valve, the valve needle (33) of which opening inwards towards a pressure chamber (35) which can be subjected to the injection pressure controls a valve seat (36) tapering outwards towards the pressure chamber (35) by means of a conical closing surface (33b) radially defining a needle tip (37). The taper angle of the closing surface (33b) is greater than the taper angle of the associated valve seat (36), and the closing surface (33b) forms a sealing edge, the diameter of which is equal to or only slightly less than the guide diameter of the guide shank (38) on the valve element (33). In a preferred embodiment the needle tip (37) of the valve element (33) has a flow conducting external profile, assisting the opening movement, joined on to the closing face (33b) at the end. The injection pump is particularly suited for high pressure injection in diesel internal combustion engines for obtaining precise electrical control of the start of delivery and of the delivery flow, if a [...] bounded by a yielding piston [...] to a high-pressure space comprising the pump working space (21) ... Original abstract incomplete.

8. 发明专利

DE19543116A1 未知
公开(公告)号：DE19543116A1
公开(公告)日：1997-05-22
申请号：DE19543116
申请日：1995-11-18
申请人： BOSCH GMBH ROBERT
发明人： RODRIGUEZ-AMAYA NESTOR DIPL IN
IPC分类号： F02M41/12 , F02M41/06 , F02M41/14 , F02M59/44
摘要： A fuel injection pump for internal combustion engines which has a moving part supported in a housing bore and on its jacket face on one side, has an exit opening that is under high pressure, and whose bearing is improved by virtue of the fact that at least one closed annular groove is provided on the jacket face of the part or in the wall of the housing bore, axially adjacent to the exit opening. As a result, a more even pressure distribution of the pressure field prevailing in the regions of the exit opening is achieved on the circumference of the moving part and as a result, a less damage prone, improved bearing with great high pressure tightness of the moving part is provided.

9. 发明专利

DE19542952A1 未知
公开(公告)号：DE19542952A1
公开(公告)日：1997-05-22
申请号：DE19542952
申请日：1995-11-18
申请人： BOSCH GMBH ROBERT
发明人： NOTHDURFT HEINZ , FEHLMANN WOLFGANG , BONSE BERNHARD DIPL ING DR , RODRIGUEZ-AMAYA NESTOR DIPL IN , EBLEN EWALD DIPL ING DR , PITSCH HOLGER DR , STERR ANDREAS DIPL ING , FUCHS WALTER DR , DUTT ANDREAS , WOLKE JOERG DIPL ING
IPC分类号： F02M41/12 , F02M41/06 , F02M41/14 , F02M59/44
摘要： A fuel injection pump for internal combustion engines which has a moving part supported in a housing bore and on its jacket face on one side, has an exit opening that is under high pressure, and whose bearing is improved by virtue of the fact that on the jacket face of the part or in the wall of the housing bore, at least one pressure compensation is provided. The compensation face is connected to a high pressure source, is disposed on a side of the jacket face of the part which side is remote from the exit opening, and is continuously covered by the wall of the housing bore. As a result, a compensation of the pressure action by means of the pressure field prevailing in the region of the exit opening occurs so that an improved, less damage-prone bearing is produced with a greater high pressure tightness of the moving part.

10. 发明专利

DE4323683A1 未知
公开(公告)号：DE4323683A1
公开(公告)日：1995-01-19
申请号：DE4323683
申请日：1993-07-15
申请人： BOSCH GMBH ROBERT
发明人： RODRIGUEZ-AMAYA NESTOR DIPL IN
IPC分类号： F02M41/14 , F02M59/36 , F02M59/46 , F02M59/38
摘要： PCT No. PCT/DE94/00695 Sec. 371 Date Mar. 15, 1996 Sec. 102(e) Date Mar. 15, 1996 PCT Filed Jun. 18, 1994 PCT Pub. No. WO95/02760 PCT Pub. Date Jan. 26, 1995A fuel injection pump of the distributor type which has at least one pump piston driven in a reciprocating stroke motion, a rotating distributor shaft which via a distributor bore upon rotation establishes a communication between the pump work chamber, defined by the pump piston, and an injection nozzle, and a switching valve for metering the fuel injection quantity. To achieve highly stable hydraulics upon opening and closing of the switching valve, a low-pressure piston is connected to the valve member of the switching valve; the low-pressure piston is axially displaceably guided on the low-pressure side of the switching valve, downstream of the outlet of a relief bore, in a wall segment. Preferably, the outer diameter of the low-pressure piston is made to largely approximate the diameter of the seat face of the valve member on the associated valve seat.

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