IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
UP-0760141
(2007-06-08)
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등록번호 |
US-7845162
(2011-01-31)
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발명자
/ 주소 |
- Carroll, III, John T.
- Tikk, Laszlo D.
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출원인 / 주소 |
- Cummins Filtration IP, Inc
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대리인 / 주소 |
Kunzler Needham Massey & Thorpe
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인용정보 |
피인용 횟수 :
0 인용 특허 :
5 |
초록
▼
A pump component is removed from a port of a suction-side fluid cavity of a high-pressure fluid pump. The pump component performs a pump function for the high-pressure fluid pump. A primary coupler connects to the port. The pump component connects to the primary coupler. A diverter fluid passage div
A pump component is removed from a port of a suction-side fluid cavity of a high-pressure fluid pump. The pump component performs a pump function for the high-pressure fluid pump. A primary coupler connects to the port. The pump component connects to the primary coupler. A diverter fluid passage diverts a low-pressure fluid from the primary coupler to an auxiliary fluid delivery system. The primary coupler communicates the low-pressure fluid through the pump component and primary coupler to the port.
대표청구항
▼
What is claimed is: 1. An apparatus for diverting fluid, the apparatus comprising: a primary coupler configured to connect to a port of a suction-side fluid cavity of a high-pressure fluid pump, wherein the port is configured to receive a pump component and the pump component performs a pump functi
What is claimed is: 1. An apparatus for diverting fluid, the apparatus comprising: a primary coupler configured to connect to a port of a suction-side fluid cavity of a high-pressure fluid pump, wherein the port is configured to receive a pump component and the pump component performs a pump function for the high-pressure fluid pump; a diverter fluid passage configured to divert a low-pressure fluid from the primary coupler to an auxiliary fluid delivery system; and the primary coupler further configured to connect to the pump component and communicate the low-pressure fluid to the pump component; wherein the port comprises a port fluid outlet passage that is in communication with the low-pressure fluid that is received from an internal passage of the high-pressure fluid pump and a port fluid inlet passage that is in communication with the suction-side fluid cavity, the pump component comprises a component fluid inlet and a component fluid outlet, the primary coupler comprises a coupler fluid inlet passage configured to communicate the low-pressure fluid between the port fluid outlet passage, the diverter fluid passage, and the component fluid inlet, and the primary coupler comprises a coupler fluid outlet passage configured to communicate a low-pressure fluid downstream of the pump component between the component fluid outlet and the port fluid inlet passage. 2. The apparatus of claim 1, wherein the pump component is configured as a proportional metering valve that regulates fluid received from a low-pressure pump. 3. The apparatus of claim 1, wherein the diverter fluid passage diverts the low-pressure fluid to an orifice of the auxiliary fluid delivery system, the orifice having an effective area A calculated as A ≥ V 1 ∫ 0 T 2 2 Δ P ρ ⅆ t where V1 is a volume of a specified quantity of fluid, T2 is a second time interval, ΔP is a pressure difference across the orifice, and ρ is a fluid density. 4. The apparatus of claim 1, wherein the fluid is diesel fuel. 5. The apparatus of claim 4, wherein the auxiliary fluid delivery system delivers the diesel fuel to a catalytic converter, and the diesel fuel aids chemical reduction of nitrogen oxides in the catalytic converter. 6. The apparatus of claim 5, wherein the high-pressure fluid pump is a LDA V6 Bosch high-pressure fuel pump. 7. The apparatus of claim 1, wherein the pump component is disposed in-line with an axis of the port. 8. The apparatus of claim 1, wherein the pump component is disposed at an angle in the range of zero to ninety degrees to an axis of the port. 9. An apparatus for diverting fluid, the apparatus comprising: a primary coupler configured to connect to a port of a suction-side fluid cavity of a high-pressure fluid pump, wherein the port is configured to receive a pump component and the pump component performs a pump function for the high-pressure fluid pump; a diverter fluid passage configured to divert a low-pressure fluid from the primary coupler to an auxiliary fluid delivery system; and the primary coupler further configured to connect to the pump component and communicate the low-pressure fluid to the pump component; wherein the port comprises a port fluid outlet passage that is in communication with a low-pressure fluid upstream of the pump component that is received from an internal passage of the high-pressure fluid pump and a port fluid inlet passage that is in communication with the suction-side fluid cavity, the pump component comprises a component fluid inlet and a component fluid outlet, the primary coupler comprises a coupler fluid inlet passage configured to communicate the upstream low-pressure fluid between the port fluid outlet passage and the component fluid inlet, and the primary coupler comprises a coupler fluid outlet passage configured to communicate the low-pressure fluid between the component fluid outlet, the diverter fluid passage, and the port fluid inlet passage. 10. A system for diverting fluid, the system comprising: a high-pressure fluid pump comprising a port to a suction-side fluid cavity; a pump component that performs a pump function for the high-pressure fluid pump, wherein the port is configured to receive the pump component; an auxiliary fluid delivery system configured to deliver fluid; a primary coupler connected to the port; a diverter fluid passage that diverts a low-pressure fluid from the primary coupler to the auxiliary fluid delivery system; and the primary coupler further configured to connect to the pump component and communicate the low-pressure fluid to the pump component; wherein the port comprises a port fluid outlet passage that is in communication with the low-pressure fluid that is received from an internal passage of the high-pressure fluid pump and a port fluid inlet passage that is in communication with the suction-side fluid cavity, the pump component comprises a component fluid inlet and a component fluid outlet, the primary coupler comprises a coupler fluid inlet passage configured to communicate the low-pressure fluid between the port fluid outlet passage, the diverter fluid passage, and the component fluid inlet, and the primary coupler comprises a coupler fluid outlet passage configured to communicate a low-pressure fluid downstream of the pump component between the component fluid outlet and the port fluid inlet passage. 11. The system of claim 10, wherein the pump component is configured as a proportional metering valve that regulates fluid received from a low-pressure pump. 12. The system of claim 11, wherein the fluid is diesel fuel. 13. The system of claim 12, the auxiliary fluid delivery system comprising an orifice, an accumulator, and an injector. 14. The system of claim 13, wherein the diverter fluid passage diverts the low-pressure diesel fuel to the orifice, the orifice having an effective area A calculated as A ≥ V 1 ∫ 0 T 2 2 Δ P ρ ⅆ t where V1 is a volume of a specified quantity of diesel fuel, T2 is a second time interval, ΔP is a pressure difference across the orifice, and ρ is a diesel fuel density. 15. The system of claim 14, wherein the injector delivers the diesel fuel to a catalytic converter, and the diesel fuel aids chemical reduction of nitrogen oxides in the catalytic converter. 16. The system of claim 15, further comprising a diesel engine, wherein the high-pressure fluid pump is configured to deliver the diesel fuel to the diesel engine. 17. An apparatus for diverting diesel fuel, the apparatus comprising: means for connecting to a port of a suction-side fuel cavity of a high-pressure fuel pump, connecting to a pump component, and communicating a low-pressure diesel fuel through the pump component and primary coupler to the port, wherein the port is originally configured to receive the pump component and the pump component performs a pump function for the high-pressure fuel pump; means for diverting the low-pressure diesel fuel from the connecting means to an auxiliary fuel delivery system; and means for limiting the low-pressure fuel diverted to the auxiliary fuel delivery system, the limiting means having an effective area A calculated as A ≥ V 1 ∫ 0 T 2 2 Δ P ρ ⅆ t where V1 is a volume of a specified quantity of diesel fuel, T2 is a second time interval, ΔP is a pressure difference across the orifice, and ρ is a diesel fuel density. 18. A system for diverting fluid, comprising: a fluid metering device; a high-pressure fluid pump comprising a port configured to receive the fluid metering device, the port comprising an internal passage communicable in fluid receiving communication with a low-pressure fluid pump; a primary coupler connected to the port of the high-pressure fluid pump, wherein the fluid metering device is connected to the primary coupler, the primary coupler comprising a fluid inlet passage, a first fluid outlet passage, and a second fluid outlet passage, the fluid inlet passage being communicable in fluid receiving communication with the internal passage of the port, and the first fluid outlet passage being communicable in fluid receiving communication with the fluid inlet passage and fluid providing communication with the high-pressure fluid pump via the port; and an auxiliary fluid delivery system communicable in fluid receiving communication with the second fluid outlet passage.
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