IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0235502
(2002-09-06)
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발명자
/ 주소 |
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출원인 / 주소 |
- Siemens VDO Automotive Corporation
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인용정보 |
피인용 횟수 :
6 인용 특허 :
10 |
초록
▼
An apparatus, system, and method of damping pressure pulsations and attenuating noise transmission in a fuel supply system. The apparatus includes a first end in fluid communication with a fuel supply line, a second end in fluid communication with a manifold, and a body that couples in fluid communi
An apparatus, system, and method of damping pressure pulsations and attenuating noise transmission in a fuel supply system. The apparatus includes a first end in fluid communication with a fuel supply line, a second end in fluid communication with a manifold, and a body that couples in fluid communication the first and second ends. The first end is adapted to receive fuel from a pump. The second end is adapted to supply the fuel to a plurality of nozzles in individual fluid communication with the manifold. And the body includes a tube that is arranged in a helix around a central axis.
대표청구항
▼
1. An apparatus damping pressure pulsations and attenuating noise transmission in a fluid supply system, the apparatus comprising: a first end in fluid communication with a fluid supply line, the first end is adapted to receive fluid from a pump; a second end in fluid communication with a manif
1. An apparatus damping pressure pulsations and attenuating noise transmission in a fluid supply system, the apparatus comprising: a first end in fluid communication with a fluid supply line, the first end is adapted to receive fluid from a pump; a second end in fluid communication with a manifold, the second end is adapted to supply the fluid to a plurality of nozzles in individual fluid communication with the manifold; and a body coupling in fluid communication the first and second ends, the body including a tube arranged in a helix around a central axis, the body including a first portion extending along a first axis from the helix to the first end, and including a second portion extending along a second axis from the helix to the second end. 2. The apparatus according to claim 1, wherein the fluid is adapted to be drawn by the pump from a tank, and the fluid is adapted to be discharged intermittently from each of the plurality of nozzles.3. The apparatus according to claim 1, wherein an angular measure between the first and second axes, when viewed along the central axis, is at least 360 degrees.4. The apparatus according to claim 1, wherein the tube includes a wall thickness related to the pressurization of the fluid.5. The apparatus according to claim 4, wherein the wall thickness is between 0.5 millimeter and 2.0 millimeters.6. The apparatus according to claim 1, wherein the tube comprises steel.7. The apparatus according to claim 6, wherein the steel is selected from a group including stainless steel and low carbon steel.8. The apparatus according to claim 1, wherein the first end is axially spaced along the central axis with respect to the second end.9. A system for delivering fuel to an internal combustion engine, the system comprising: a tank storing fuel at a first pressure; a fuel injector dispensing the fuel, the fuel is supplied to the fuel injector at a second pressure; an apparatus in fluid communication between the tank and the fuel injector, the apparatus including: a first end in fluid communication with the tank;a second end in fluid communication with the fuel injector; anda body coupling in fluid communication the first and second ends, the body including a tube arranged in a helix around a central axis; and wherein the apparatus damps pressure pulsations and attenuates noise transmission due to variations in the second pressure. 10. The system according to claim 9, further comprising: a fuel rail coupled in fluid communication between the apparatus and the fuel injector. 11. The system according to claim 10, wherein the fuel injector comprises a plurality of the fuel injectors that are each independently coupled in fluid communication with the fuel rail.12. The system according to claim 10, further comprising: a pump coupled in fluid communication between the tank and the apparatus; and at least one supply line providing fluid communication between the pump and the apparatus. 13. The system according to claim 12, wherein the apparatus comprises a coupling providing fluid communication between the supply line and the fuel rail.14. The system according to claim 9, wherein the first pressure is approximately equal to atmospheric pressure, and the second pressure is at least 20 pounds per square inch above the first pressure.15. A system for delivering fuel to an internal combustion engine, the system comprising: a tank storing fuel; a fuel injector dispensing the fuel; an apparatus in fluid communication between the tank and the fuel injector, the apparatus providing a helical fuel flow path and reducing pressure pulsations to an approximate range of ±10.0 kilopascals. 16. The system according to claim 15, wherein the apparatus reduces pressure pulsations to an approximate range of ±7.5 kilopascals.
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