Multi-fuel multi-injection system for an internal combustion engine
View Patent ↗A fuel injection system for an internal combustion engine is disclosed, the fuel injection system including a plurality of injectors, wherein each of the injectors is adapted to inject at least one of an alternative fuel and a fossil fuel over a full range of operating conditions of the engine.
1. A fuel injection system comprising:
a first injector adapted to receive a first stream of a first fuel from a source of the first fuel, wherein the first injector injects the first stream of the first fuel into an intake path of a cylinder;
a second injector adapted to receive second stream of the first fuel from the source of the first fuel, wherein the second injector injects the second stream of the first fuel into the cylinder; and
a control system adapted to control a combustion in the cylinder over a fill range of operating conditions of an engine, wherein an amount of the first fuel is provided to the cylinder over the fill range of operating conditions of the engine and wherein the first fuel is an alternative fuel.
2. The fuel injection system according to claim 1 , wherein the first injector is one of a port fuel injector and a throttle body injector.
3. The fuel injection system according to claim 1 , wherein the first injector receives a first stream of a second fuel, wherein the first injector injects the first stream of the second fuel into the intake path of the cylinder.
4. The fuel injection system according to claim 3 , where the second injector receives a second stream of the second fuel, wherein the second injector injects the second stream of the second fuel into the cylinder.
5. The fuel injection system according to claim 4 , further comprising a third injector receiving at least one of a third stream of the first fuel and a third stream of the second fuel, wherein the third injector injects at least one of the third stream of the first fuel and the third stream of the second fuel in a manifold of the engine.
6. The fuel injection system according to claim 5 , wherein the second fuel is a fossil fuel.
7. A fuel injection system comprising:
a first injector adapted to receive a first stream of a first fUel from a source of the first fuel and a first stream of a second fuel from a source of the second fuel, wherein the first injector injects the first stream of the first fuel and the first stream of the second fuel into an intake path of a cylinder; and
a second injector adapted to receive a second stream of the first fuel and a second stream of the second fuel, wherein the second injector selectively injects the second stream of the first fuel and the second stream of the second fuel into the cylinder.
8. The fuel injection system according to claim 7 , further comprising a control system adapted to control a combustion in the cylinder over a full range of operating conditions of an engine.
9. The fuel injection system according to claim 7 , wherein the first fuel is an alternative fuel.
10. The fuel injection system according to claim 7 , wherein the second fuel is a fossil fuel.
11. The fuel injection system according to claim 7 , wherein the first injector is one of a port fuel injector and a throttle body injector.
12. The fuel injection system according to claim 7 , further comprising at least one injector adapted to receive at least one of a stream of the first fuel and a stream of the second fuel, wherein the at least one injector injects at least one of the stream of the first fuel and the stream of the second fuel in a manifold of an engine.
13. A fuel injection system comprising:
a first injector adapted to receive a first stream of a first fuel from a source of the first fuel, wherein the first injector injects the first stream of the first fuel into an intake path of a cylinder;
a second injector adapted to receive a first strewn of a second fuel from a source of the second fuel, wherein the second injector injects the first stream of the second fuel into the intake path of the cylinder;
a third injector adapted to receive a second stream of the first fuel, wherein the third injector injects the second stream of the first fuel into the cylinder; and
a fourth injector adapted to receive a second stream of the second fuel, wherein the fourth injector injects the second stream of the second fuel into the cylinder.
14. The fuel injection system according to claim 13 , further comprising a control system adapted to control a combustion in the cylinder over a full range of operating conditions of an engine.
15. The fuel injection system according to claim 14 , wherein the control system is adapted to control at least one of an injection timing, an injection duration, and an injection rate of each of the injectors and a fuel ratio of the first fuel to the second fuel.
16. The fuel injection system according to claim 13 , wherein the first fuel is an alternative fuel.
17. The fuel injection system according to claim 13 , wherein the second fuel is a fossil fuel.
18. The fuel injection system according to claim 13 , further comprising at least one injector adapted to receive at least one of a stream of the first fuel and a stream of the second fuel, wherein the at least one injector injects at least one of the stream of the first fuel and the stream of the second fuel in a manifold of an engine.
19. The fuel injection system according to claim 13 , wherein at least one of the first fuel and the second fuel is a fuel in a liquid state.
20. The fuel injection system according to claim 13 , wherein at least one of the first injector and the second injector is one of a port fuel injector and a throttle body injector.