Injector sleeve for an injector, and blowing device and internal combustion engine
AssigneeDaimler Truck AG
InventorMoritz Schumacher
Life of this patent
Estimating the term…
Abstract
An injector sleeve for an injector for introducing a gaseous fuel into a combustion chamber of an internal combustion engine includes an intake in which the injector is at least partially receivable. A lateral surface on an external periphery has a longitudinal region around which a coolant flowing through a cooling chamber of the internal combustion engine is flowable. A sealing region connected to the longitudinal region seals the combustion chamber from the cooling chamber. A cap is arrangeable in the combustion chamber and the cap has a flow opening where gaseous fuel flowing out of the injector is directly flowable through the cap for shaping a jet of the gaseous fuel.
Claims8
An injector sleeve (10) of an injector (12) for introducing a gaseous fuel into a combustion chamber of an internal combustion engine, comprising:
- an intake (14) in which the injector (12) is at least partially receivable;
- a lateral surface on an external periphery (16) that has a longitudinal region (18) around which a coolant flowing through a cooling chamber (20) of the internal combustion engine is flowable;
- a sealing region (22) connected to the longitudinal region (18) that seals the combustion chamber from the cooling chamber (20);
- and
- a cap (26) that is disposed in the combustion chamber or protrudes into the combustion chamber and that has a flow opening (28), wherein gaseous fuel flowing out of the injector (12) is directly flowable through the cap (26) for shaping a jet of the gaseous fuel and wherein the flow opening (28) is disposed downstream of an entirety of the injector (12), and thus, downstream of an exit opening (40) of the injector (12) in a flow direction of the gaseous fuel;
- wherein at least the longitudinal region (18) is formed by a wall (30) of the injector sleeve (10) and wherein the wall (30) is designed as one part with the cap (26).
An injection device (36) for injecting a gaseous fuel into a combustion chamber of an internal combustion engine, comprising:
- an injector (12), wherein the gaseous fuel is flowable through the injector (12);
- and
- an injector sleeve (10), wherein the injector sleeve (10) is designed separately from the injector (12);
- wherein the injector sleeve (10) comprises:
- an intake (14) in which the injector (12) is at least partially receivable;
- a lateral surface on an external periphery (16) that has a longitudinal region (18) around which a coolant flowing through a cooling chamber (20) of the internal combustion engine is flowable;
- a sealing region (22) connected to the longitudinal region (18) that seals the combustion chamber from the cooling chamber (20);
- and
- a cap (26) that is disposed in the combustion chamber or protrudes into the combustion chamber and that has a flow opening (28), wherein gaseous fuel flowing out of the injector (12) is directly flowable through the cap (26) for shaping a jet of the gaseous fuel and wherein the flow opening (28) is disposed downstream of an entirety of the injector (12), and thus, downstream of an exit opening (40) of the injector (12) in a flow direction of the gaseous fuel;
- wherein at least the longitudinal region (18) is formed by a wall (30) of the injector sleeve (10) and wherein the wall (30) is designed as one part with the cap (26).
An internal combustion engine for a motor vehicle, comprising:
- an injection device (36);
- wherein the injection device (36) comprises:
- an injector (12), wherein gaseous fuel is flowable through the injector (12);
- and
- an injector sleeve (10), wherein the injector sleeve (10) is designed separately from the injector (12);
- wherein the injector sleeve (10) comprises:
- an intake (14) in which the injector (12) is at least partially receivable;
- a lateral surface on an external periphery (16) that has a longitudinal region (18) around which a coolant flowing through a cooling chamber (20) of the internal combustion engine is flowable;
- a sealing region (22) connected to the longitudinal region (18) that seals the combustion chamber from the cooling chamber (20);
- and
- a cap (26) that is disposed in the combustion chamber or protrudes into the combustion chamber and that has a flow opening (28), wherein gaseous fuel flowing out of the injector (12) is directly flowable through the cap (26) for shaping a jet of the gaseous fuel and wherein the flow opening (28) is disposed downstream of an entirety of the injector (12), and thus, downstream of an exit opening (40) of the injector (12) in a flow direction of the gaseous fuel;
- wherein at least the longitudinal region (18) is formed by a wall (30) of the injector sleeve (10) and wherein the wall (30) is designed as one part with the cap (26).
Dependencies are inferred from the claim text.