ENGINE WITH GASEOUS AND/OR LIQUID FUEL INJECTOR
First Claim
1. A system for a vehicle travelling on a surface, comprising:
- an engine having a cylinder, the cylinder having a fuel injector, the fuel injector supplied with gaseous fuel and liquid fuel by a fuel delivery system, the fuel injector mounted in the vehicle such that the fuel injector inlet faces at least partially toward the road surface.
1 Assignment
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Accused Products
Abstract
In one example, a system for a vehicle travelling on a surface is described. The system includes an engine with a cylinder. The cylinder includes a fuel injector that is supplied with gaseous fuel and liquid fuel by a fuel delivery system. The fuel injector is mounted in the vehicle such that the fuel injector inlet faces at least partially toward the road surface. The orientation of the fuel injector enables a quick transition from liquid fuel to gaseous fuel because the gaseous fuel can rise to the injectors and be preferentially injected. Further, various approaches are described from transitioning operation between gaseous and liquid fuel injection.
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Citations
21 Claims
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1. A system for a vehicle travelling on a surface, comprising:
an engine having a cylinder, the cylinder having a fuel injector, the fuel injector supplied with gaseous fuel and liquid fuel by a fuel delivery system, the fuel injector mounted in the vehicle such that the fuel injector inlet faces at least partially toward the road surface. - View Dependent Claims (2, 3, 4)
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5. A method of controlling an engine having a cylinder, the cylinder having a first, direct, fuel injector and a second fuel injector, the second fuel injector selectively supplied with one or more of gaseous fuel and liquid fuel by a fuel delivery system, the first, direct, fuel injector supplied with liquid fuel, the method comprising:
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delivering liquid fuel to the first, direct, injector of the cylinder; selectively delivering liquid fuel to the second injector of the cylinder during a first condition; selectively delivering gaseous fuel to the second injector of the cylinder during a second condition, the second condition different than the first condition; and adjusting injection of the first injector when transitioning the second injector from liquid fuel to gaseous fuel and when transitioning the second injector from gaseous fuel to liquid fuel. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of controlling an engine having a cylinder, the cylinder having a first, direct, fuel injector and a second fuel injector, the second fuel injector selectively supplied with one or more of gaseous fuel and liquid fuel by a fuel delivery system, the first, direct, fuel injector supplied with liquid fuel, the method comprising:
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delivering liquid fuel to the first, direct, injector of the cylinder; selectively delivering liquid fuel to the second injector of the cylinder during a first condition; selectively delivering gaseous fuel to the second injector of the cylinder during a second condition, the second condition different than the first condition; increasing injection of the first injector and ceasing injection of the second injector when transitioning the second injector from liquid fuel to gaseous fuel and when transitioning the second injector from gaseous fuel to liquid fuel; and decreasing injection of the first injector when resuming injection of the second injector.
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Specification