Device for extracting a nozzle assembly
AssigneeKlann Spezial-Werkzeugbau GmbH
InventorHorst Klann
Life of this patent
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Abstract
A device for extracting a nozzle assembly of a fuel injection installation. The nozzle assembly is pressed into a cylinder head of an internal combustion engine, with a support pipe, with which the extraction device of the device is supported in the area surrounding the nozzle assembly on the valve cover during the extraction operation. To rule out deformations of the valve cover in case of strong tensile forces and extremely crowded space conditions, provisions are made according to the present invention for a divided support ring, which is formed from two ring sections, which can be placed individually on the valve cover in the area surrounding the nozzle assembly, to be able to be inserted between the support pipe of the extraction device and the surface of the valve cover.
Claims9
A device for extracting a nozzle assembly of a fuel injection installation, the nozzle being pressed into a cylinder head of an internal combustion engine, the device comprising:
- an extraction device including a support cylinder and a separate, support ring detached from said support cylinder, said support cylinder having a front ring surface located at an end thereof, said support ring having a first ring section and a second ring section to be placed on a valve cover in an area surrounding the nozzle assembly, said support ring being arranged between the support cylinder and a valve cover placed on the cylinder head, said first ring section and said second ring section having a first support surface in contact with the valve cover, said first ring section and said second ring section having a radial width greater than a radial width of said front ring surface, said first ring section and said second ring section having a second support surface, said second support surface engaging said front ring surface of said support cylinder during an extraction operation, said first ring section and said second ring section axially supporting said support cylinder during said extraction operation.
Dependencies are inferred from the claim text.