[미국특허]
Injector for a fuel supply system of an internal combustion engine and fuel supply system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02M-061/10
F02M-041/16
F02M-061/16
출원번호
US-0894145
(2013-05-14)
등록번호
US-10174729
(2019-01-08)
우선권정보
DE-10 2012 208 075 (2012-05-15)
발명자
/ 주소
Atzkern, Thomas
Indrich, Maximilian
Kern, Stefan
Weber, Claudius
Maier, Ludwig
Schaar, Holger
Wagner, Wolfgang
Klaua, Thomas
Wellenkötter, Harald
Wörle, Werner
출원인 / 주소
MAN Energy Solutions SE
대리인 / 주소
Cozen O'Connor
인용정보
피인용 횟수 :
0인용 특허 :
23
초록▼
An injector for a fuel supply system of an internal combustion engine, namely for a common rail fuel supply system of an internal combustion engine which is formed in particular as a large diesel internal combustion engine or ship's diesel internal combustion engine, having an injection nozzle, a co
An injector for a fuel supply system of an internal combustion engine, namely for a common rail fuel supply system of an internal combustion engine which is formed in particular as a large diesel internal combustion engine or ship's diesel internal combustion engine, having an injection nozzle, a control valve and a retaining body. The injection nozzle and the control valve form a clamped composite, and the composite formed of the injection nozzle and control valve can be mounted on the retaining body as a unit and disassembled from the retaining body as a unit.
대표청구항▼
1. An injector for a fuel supply system of an internal combustion engine, comprising: an injection nozzle having an external thread;a control valve;at least one radially extending intermediate plate configured as one of a valve plate and a throttle plate and axially positioned between the injection
1. An injector for a fuel supply system of an internal combustion engine, comprising: an injection nozzle having an external thread;a control valve;at least one radially extending intermediate plate configured as one of a valve plate and a throttle plate and axially positioned between the injection nozzle and the control valve, wherein the at least one intermediate plate is clamped between the injection nozzle and the control valve;a clamping sleeve configured to seal and cover parting surfaces between one the control valve, the intermediate plate, and the injection nozzle, and having at least one radially inward directed projection; andwherein the clamping sleeve, the injection nozzle, the intermediate plate, and the control valve form a clamped assembly, andwherein the clamped assembly formed of the injection nozzle and the control valve is configured to be mounted and unmounted as a unit,wherein the control valve has at a radially outer lateral surface:a radially inwardly directed recess configured as a circumferential groove,wherein the clamping sleeve has the at least one radially inwardly directed projection configured as a circumferential bead at a first portion that cooperates with the at least one of the radially inwardly directed recess of the control valve to fix the clamping sleeve in a position on the control valve,wherein the clamping sleeve has an internal thread at a second portion that mates with the external thread of the injection nozzle. 2. The injector according to claim 1, wherein the clamping sleeve is configured to cover the at least one intermediate plate. 3. The injector according to claim 2, wherein the radially inward directed projections of the clamping sleeve are spaced axially from one another, and wherein, after a deformation of the clamping sleeve that surrounds at least portions of the injection nozzle and the control valve during assembly of the injector, the radially inward directed projections engage by positive engagement in the radially inward directed projections while providing the clamped assembly. 4. The injector according to claim 1, wherein the clamped assembly is configured to be clamped when the injection nozzle and the clamping sleeve are screwed together, and wherein the clamping sleeve is configured to cover respective parting surfaces between one or more of the control valve, the injection nozzle, and the at least one intermediate plate. 5. The injector according to claim 1, further comprising: bore holes that extend in longitudinal direction defined in each of the control valve and the injection nozzle; andclamping screws configured to extend into respective bore holes. 6. The injector according to claim 5, wherein the bore holes are threaded bore holes with internal thread at least in the injection nozzle that are configured to mate with external threads of the clamping screws, andwherein the bore holes have a shoulder configured to mate with a flange of the clamping screws so that the clamped assembly is clamped by tightening the clamping screws. 7. The injector according to claim 6, wherein the bore holes are incorporated in the at least one intermediate plate. 8. The injector of claim 1, wherein the fuel supply system is a common rail fuel supply system and the internal combustion engine is one of a large diesel internal combustion engine and a ship's diesel internal combustion engine. 9. The injector of claim 1, wherein the clamping sleeve has an internal thread at a second portion that only mates with the external thread of the injection nozzle. 10. The injector according to claim 1, wherein the at least one radially inward directed projection is arranged between axial ends of the clamping sleeve. 11. The injector according to claim 1, wherein at least one of the radially inwardly directed recess or the at least one shoulder of the control valve is arranged between axial ends of the control valve. 12. The injector according to claim 1, wherein the at least one radially extending intermediate plate, the injection nozzle, and the control valve have a substantially same radial dimension. 13. A fuel supply system, namely common rail fuel supply system of an internal combustion engine which is formed in particular as a large diesel internal combustion engine or ship's diesel internal combustion engine, comprising: a low-pressure region;a pump arrangement having at least one high-pressure pump to convey fuel from the low-pressure region of the fuel supply system into a high-pressure region;a pressure accumulator system having at least one storage unit that is permanently under high pressure is arranged in the high-pressure region between the pump arrangement and injectors associated with cylinders;at least one first high-pressure fuel line that is permanently under high pressure that couples the pressure accumulator system to the pump arrangement; at least one injector comprising:an injection nozzle;a control valve;at least one radially extending intermediate plate axially positioned between the injection nozzle and the control valve, wherein the at least one intermediate plate is configured as one of a valve plate and a throttle plate and clamped between the injection nozzle and the control valve; anda clamping sleeve configured to seal and cover parting surfaces between the control valve, intermediate plate, and the injection nozzle, and having radially inward directed projections,wherein the clamping sleeve, the injection nozzle, injection nozzle, intermediate plate, and the control valve form a clamped assembly, andwherein the clamped assembly formed of the injection nozzle and the control valve is configured to be mounted and unmounted as a unit;wherein the control valve has at a radially outer lateral surface:a radially inwardly directed recess configured as a circumferential groove,wherein the clamping sleeve has the at least one radially inwardly directed projection configured as a circumferential bead at a first portion that cooperates with the at least one of the radially inwardly directed recess of the control valve to fix the clamping sleeve in a position on the control valve,wherein the clamping sleeve has an internal thread at a second portion that mates with the external thread of the injection nozzle.
Beck Niels J. (Bonita CA) Pena James A. (Solana Beach CA) Roach Alan R. (Del Mar CA) Johnston Bevan H. (La Mesa CA), Accumulator fuel injection system.
Ausman Thomas G. (Peoria IL) Harmon Michael P. (Dunlap IL) Shinogle Ronald D. (Peoria IL) Zimmer Michael T. (Brookfield WI), Damped actuator and valve assembly for an electronically-controlled injector.
Beck Niels J. (Bonita CA) Pena James A. (Leucadia CA) Roach Alan R. (Del Mar CA) Johnston Bevan H. (Spring Valley CA), Fuel injection system having a pressure intensifier incorporating an overtravel safety feature.
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