Fuel injection system of an internal combustion engine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02M-063/02
F02M-055/02
출원번호
US-0002873
(2012-03-02)
등록번호
US-9951737
(2018-04-24)
우선권정보
DE-10 2011 005 096 (2011-03-04)
국제출원번호
PCT/EP2012/053664
(2012-03-02)
§371/§102 date
20131210
(20131210)
국제공개번호
WO2012/119957
(2012-09-13)
발명자
/ 주소
Wagner, Wolfgang
Meixner, Markus
출원인 / 주소
MAN Diesel & Turbo SE
대리인 / 주소
Cozen O'Connor
인용정보
피인용 횟수 :
0인용 특허 :
4
초록▼
An internal combustion engine (1) has a plurality of combustion cylinders at each of which a fuel injection device (120) is provided. Every combustion cylinder is provided with its own pilot unit (10c-10f) with a fuel accumulator which is integrated therein and which is connected by one of a plurali
An internal combustion engine (1) has a plurality of combustion cylinders at each of which a fuel injection device (120) is provided. Every combustion cylinder is provided with its own pilot unit (10c-10f) with a fuel accumulator which is integrated therein and which is connected by one of a plurality of first fuel lines (110) to the fuel injection device associated with the respective combustion cylinder for supplying fuel to the latter. A fuel pump which can be connected to a fuel source for supplying a predetermined fuel pressure is integrated in at least one of the pilot units (10d). The fuel accumulator of every pilot unit is so adapted that it ensures that fuel delivered by the fuel pump is supplied to the respective associated fuel injection device in a pressure-stable manner.
대표청구항▼
1. An internal combustion engine (1, 1a) comprising: a plurality of combustion cylinders each of which having an associated fuel injection device (120), each of the plurality of combustion cylinders being provided with its own pilot unit (10, 10a-10g) having a fuel accumulator (20) integrated therei
1. An internal combustion engine (1, 1a) comprising: a plurality of combustion cylinders each of which having an associated fuel injection device (120), each of the plurality of combustion cylinders being provided with its own pilot unit (10, 10a-10g) having a fuel accumulator (20) integrated therein, each fuel accumulator (20) being connected by one of a plurality of first fuel lines (110) to the fuel injection device (120) associated with the respective combustion cylinder for supplying fuel to the respective combustion cylinder; anda fuel pump (50) configured to be connectable to a fuel source for supplying a predetermined fuel pressure, the fuel pump (50) being integrated in each instance of the plurality of the pilot units (10, 10a-10g),wherein the fuel accumulator (20) of each pilot unit (10, 10a-10g) is configured to ensure that fuel delivered by the fuel pump (50) is supplied to the respective associated fuel injection device (120) in a pressure-stable manner, andwherein the respective fuel accumulators (20) of the pilot units (10, 10a-10g) are connected to one another via a plurality of second fuel lines (100). 2. The internal combustion engine (1, 1a) according to claim 1, further comprising a quantity limiting valve (30) for limiting a quantity of fuel to be supplied per time unit to an associated fuel injection device (120), the quantity limiting valve (30) being integrated in at least one of the pilot units (10, 10a-10g). 3. The internal combustion engine (1, 1a) according to claim 1, further comprising a quantity limiting valve (30) for limiting a quantity of fuel to be supplied per time unit to an associated fuel injection device (120), the quantity limiting valve (30) being integrated in at least one pilot unit (10d) that has an integrated fuel pump (50). 4. The internal combustion engine (1, 1a) according to claim 1, further comprising a pressure limiting valve (60) for limiting the fuel pressure, the pressure limiting valve (60) being integrated in at least one of the pilot units (10b, 10c). 5. The internal combustion engine (1, 1a) according to claim 1, further comprising a quantity limiting valve (30) for limiting a quantity of fuel to be supplied per time unit to an associated fuel injection device (120) and a pressure limiting valve (60) for limiting the fuel pressure, wherein the quantity limiting valve (30) and the pressure limiting valve (60) are integrated in at least one of the pilot units (10b). 6. The internal combustion engine (1, 1a) according to claim 1, wherein at least some of the combustion cylinders are arranged in a row relative to one another, and the internal combustion engine (1, 1a) further comprises a purge valve (70) integrated in the pilot unit (10f) of a combustion cylinder forming an end of the row of combustion cylinders. 7. The internal combustion engine (1, 1a) according to claim 6, further comprising a pressure limiting valve (60) for limiting the fuel pressure, the pressure limiting valve being integrated in the pilot unit (10f) with the purge valve (70) integrated therein. 8. The internal combustion engine (1, 1a) according to claim 1, further comprising at least one pressure measuring location (80), for connecting at least one fuel pressure sensor for measuring the fuel pressure in the fuel accumulator (20) of the respective pilot unit (10g), the at least one pressure measuring location being integrated in at least one of the pilot units (10g). 9. The internal combustion engine (1, 1a) according to claim 1, wherein the first fuel lines (110) are all constructed so as to be identical to one another, and wherein the second fuel lines (100) are all constructed so as to be identical to one another.
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이 특허에 인용된 특허 (4)
Espey Christoph,DEX, Fuel guidance system for a multicylinder internal combustion engine having inlet bores for connector pumps.
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