Injection nozzle, fuel injector having injection nozzle
AssigneeRobert Bosch GmbH
InventorsMichael Leukart, Ferdinand Nicolai
Life of this patent
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Abstract
The invention relates to an injection nozzle (1) for injecting a fluid, in particular a liquid or gaseous fuel, comprising: a nozzle body (2) which is designed to be hollow-cylindrical at least in portions and forms a sealing seat (3) via which a flow path (4) for the fluid to be injected leads, a nozzle needle (5) which is accommodated in the nozzle body (2) for reciprocating movement and has a sealing surface (6) that interacts with the sealing seat (3), a guide element (7) which is fixedly connected to the nozzle needle (5) and is guided by means of an external guide (8) of the nozzle body (2). The invention further relates to a fuel injector having an injection nozzle (1) according to the invention.
Claims11
An injection nozzle (1) for injecting a fluid, the injection nozzle comprising:
- a nozzle body (2) which is configured to be hollow-cylindrical at least in portions and forms a sealing seat (3) via which a flow path (4) for the fluid to be injected leads,
- a nozzle needle (5) which is accommodated in the nozzle body (2) for reciprocating movement and has a sealing surface (6) that interacts with the sealing seat (3),
- wherein
- the nozzle needle (5) is fixedly connected to a guide element (7), the guide element (7) is guided by an external guide (8) of the nozzle body (2) for movement relative to the nozzle body (2),
- wherein the guide element (7) includes a wall that delimits a flow chamber (11) and the wall comprises at least one opening (12) for discharging the fluid from the flow chamber (11).
Dependencies are inferred from the claim text.