Fuel injector drive system
AssigneeCaterpillar Inc.
InventorsDana R. Coldren, Andrew O. Marrack
Life of this patent
Estimating the term…
Abstract
A fuel injector drive system may include a fuel injector having a first electronically-controlled valve and a second electronically-controlled valve. The fuel injector drive system may include a fuel injector driver configured to supply current to the first electronically-controlled valve and the second electronically-controlled valve simultaneously to actuate the first electronically-controlled valve and the second electronically-controlled valve. The fuel injector drive system may also include an injection valve configured to inject fuel when the first electronically-controlled valve and the second electronically-controlled valve are actuated.
Claims20
A fuel injector drive system, comprising:
- a fuel injector having:
- a first electronically-controlled valve;
- and
- a second electronically-controlled valve;
- a fuel injector driver configured to supply current to the first electronically-controlled valve and the second electronically-controlled valve simultaneously to actuate the first electronically-controlled valve and the second electronically-controlled valve;
- and
- an injection valve configured to inject fuel when the first electronically-controlled valve and the second electronically-controlled valve are actuated.
A fuel injection system, comprising:
- a fuel injector having a first valve and a second valve;
- a fuel injector drive circuit electrically connected to the first valve of the fuel injector and to the second valve of the fuel injector to supply simultaneous current for both the first valve and for the second valve;
- and
- an electronic control module configured to:
- generate a command for energizing the fuel injector drive circuit;
- and
- generate a command for actuating the first valve and the second valve.
A fuel injection method, comprising:
- supplying current to a first electronically-controlled valve with an injector driver;
- supplying current to a second electronically-controlled valve with the injector driver simultaneously as the current is supplied to the first electronically-controlled valve;
- and
- injecting fuel via an injection valve of a fuel injector that includes the first electronically-controlled valve and the second electronically-controlled valve when the first electronically-controlled valve and the second electronically-controlled valve actuate in response to the current.
Dependencies are inferred from the claim text.