Dual fuel injector with crossover valve
AssigneeCaterpillar Inc.
InventorsCory A. Brown, Xiangdong Ding, Hoisan Kim, Mayank Mittal, Mark F. Sommars
Life of this patent
Estimating the term…
Abstract
The present disclosure is directed to a fuel circuit of a fuel injector that includes a first channel, a second channel, and a valve. The first channel is configured to receive a first fuel and define a flow path for the first fuel. The second channel is configured to receive a second fuel and define a flow path for the second fuel. The valve is in fluid communication with the first channel and the second channel. The valve is adapted to direct the second fuel to the first channel when a pressure in the first channel reaches a predetermined level.
Claims16
A fuel circuit of a fuel injector, comprising:
- a first channel configured to receive a first fuel and define a flow path for the first fuel;
- a second channel configured to receive a second fuel and define a flow path for the second fuel;
- and
- a valve in fluid communication with the first channel and the second channel, the valve adapted to direct the second fuel to the first channel when a pressure in the first channel reaches a predetermined level.
A method for regulating flow of fuel in a fuel injector, comprising:
- receiving a first fuel via a first channel that defines a flow path for the first fuel;
- receiving a second fuel via a second channel that defines a flow path for the second fuel;
- and
- directing the second fuel, via a valve, to the first channel when a pressure in the first channel reaches a predetermined level.
A dual fuel common rail fuel system comprising:
- a first fuel source;
- a second fuel source;
- a first fuel rail;
- a second fuel rail;
- at least one first fuel pump configured pressurize the first fuel from the first fuel source and deliver the first fuel to the first fuel rail;
- at least one second fuel pump configured to pressurize the second fuel from the second fuel source and deliver the second fuel to the second fuel rail;
- a dual fuel injector fluidly coupled to the first fuel rail and to the second fuel rail, and further comprising:
- a fuel circuit, comprising:
- a first channel configured to receive the first fuel and define a flow path for the first fuel;
- a second channel configured to receive the second fuel and define a flow path for the second fuel;
- and
- a valve in fluid communication with the first channel and the second channel, the valve adapted to direct the second fuel to the first channel when a pressure in the first channel reaches a predetermined level.
Dependencies are inferred from the claim text.