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US 8,136,508 B2Granted
Selective displacement control of multi-plunger fuel pump
AssigneeCaterpillar Inc.
InventorDavid Norman Eddy
Life of this patent
Estimating the term…
Abstract
A pump for a combustion engine is disclosed. The pump may have at least one pumping member movable through a plurality of displacement strokes during a single engine cycle. The pump may also have a controller in communication with the pumping member. The controller may be configured to selectively reduce an amount of fluid displaced during at least one, but less than all of the plurality of displacement strokes. The reduction may be initiated in response to a demand for the displaced fluid.
Claims5
A method of pressurizing fluid, comprising:
- pressurizing fluid multiple times during a single engine cycle;
- and
- selectively reducing an amount of fluid pressurized during at least one of the times, but less than all times in response to a demand for the pressurized fluid.
Dependencies are inferred from the claim text.