Apparatus, system, and method for diverting fluid
AssigneeCummins Emission Solutions Inc.
InventorsJohn T. Carroll, III, Laszlo D. Tikk
Life of this patent
Estimating the term…
Abstract
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.
Claims14
A fluid delivery system for delivery of a fuel, the fluid delivery system comprising:
- a primary fuel supply system having a low-pressure fluid pump that is in fluid communication with a high-pressure fluid pump, the low-pressure fluid pump configured to elevate a fuel pressure of the fuel to a first pressure range, the high-pressure fluid pump configured to elevate the fuel pressure of the fuel to a second pressure range, the second pressure range being higher than the first pressure range;
- a diversion apparatus having a primary coupler and an auxiliary fluid delivery system, the primary coupler being in fluid communication with the low-pressure fluid pump and the high-pressure fluid pump, the primary coupler configured to divert a portion of a fuel flow from an outlet side of the low-pressure fluid pump to the auxiliary fluid delivery system;
- and
- wherein the diversion apparatus is adapted to prevent the fuel flow from dropping below the second pressure range.
An apparatus for diverting fluid, the apparatus comprising:
- a primary coupler having a coupler fluid inlet passage and a coupler fluid outlet passage, the primary coupler operably connected to a port of a suction-side fluid cavity of a high-pressure fluid pump, the port being formed about a central axis;
- a pump component having a component fluid inlet and a component fluid outlet, the pump component adapted to perform a pump function for the high-pressure fluid pump, the pump component adapted to receive a low-pressure fluid from the primary coupler;
- a diverter fluid passage configured to divert a low-pressure fluid from the primary coupler to an auxiliary fluid delivery system;
- and
- wherein the port comprises a port fluid outlet passage that is in fluid 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;
- wherein the coupler fluid inlet passage of the primary coupler is configured to communicate the low-pressure fluid between the port fluid outlet passage, the diverter fluid passage, and the component fluid inlet;
- and
- wherein a coupler fluid outlet passage of the primary coupler is configured to communicate a low-pressure fluid downstream of the pump component between the component fluid outlet and the port fluid inlet passage.
Dependencies are inferred from the claim text.