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US 11,519,374 B2Granted
Injector having a tripartite valve seat
AssigneeRobert Bosch GmbH
InventorsKai Gartung, Matthias Lausch
Life of this patent
Estimating the term…
Abstract
An injector for injecting a fluid includes a base body having an opening and a sealing seat, a spray-orifice disk having at least one spray orifice, and a clamping ring, the spray-orifice disk being disposed in the opening of the base body, and a first nonpositive connection is provided between the spray-orifice disk and the base body, and a second nonpositive connection is provided between the base body and the clamping ring.
Claims10
An injector for injecting a fluid, comprising:
- a base body having an opening and a sealing seat;
- a spray-orifice disk having at least one spray orifice;
- and
- a clamping ring, wherein:
- the spray-orifice disk is situated in the opening of the base body,
- a first press-fit connection is present between the spray-orifice disk and the base body, and
- a second press-fit connection is present between the base body and the clamping ring,
- wherein a radially inwardly directed clamping force is exerted by the second press-fit connection between the clamping ring and the base body,
- wherein the base body is elastically compressed radially within the clamping ring so that the spray-orifice disk sits in the opening in the base body in a pressure-tight manner,
- wherein the first press-fit connection and the second press-fit connection are positioned in such a way that a plane that runs at a right angle to a center axis of the injector intersects the first press-fit connection and the second press-fit connection,
- wherein a thickness of the spray-orifice disk equals a thickness of the clamping ring, and the clamping ring and the spray-orifice disk are disposed at a same height and situated on the plane that runs at a right angle to the center axis of the injector such that a top end portion of the clamping ring and a top end portion of the spray-orifice disk terminate a same distance away from a bottom of the injector where the fluid is injected.
8 more elements
An internal combustion engine, comprising:
- an injector for injecting a fluid, the injector including:
- a base body having an opening and a sealing seat;
- a spray-orifice disk having at least one spray orifice;
- and
- a clamping ring, wherein:
- the spray-orifice disk is situated in the opening of the base body,
- a first press-fit connection is present between the spray-orifice disk and the base body, and
- a second press-fit connection is present between the base body and the clamping ring,
- wherein a radially inwardly directed clamping force is exerted by the second press-fit connection between the clamping ring and the base body,
- wherein the base body is elastically compressed radially within the clamping ring so that the spray-orifice disk sits in the opening in the base body in a pressure-tight manner,
- wherein the first press-fit connection and the second press-fit connection are positioned in such a way that a plane that runs at a right angle to a center axis of the injector intersects the first press-fit connection and the second press-fit connection,
- wherein a thickness of the spray-orifice disk equals a thickness of the clamping ring, and the clamping ring and the spray-orifice disk are disposed at a same height and situated on the plane that runs at a right angle to the center axis of the injector such that a top end portion of the clamping ring and a top end portion of the spray-orifice disk terminate a same distance away from a bottom of the injector where the fluid is injected.
9 more elements
Dependencies are inferred from the claim text.