Camshaft adjuster
OwnerAndreas Strauss, Andreas Röhr +4inventors
InventorsAndreas Strauss, Andreas Röhr, Jens Hoppe, Viktor Lichtenwald, Jochen Auchter, Rainer Ottersbach
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Abstract
A device for changing the control times of an internal combustion engine (camshaft adjuster) having a pressure medium distributor arranged within a camshaft is provided. The pressure medium distributor is provided at its front end with a radially extending shoulder, this shoulder forming part of the camshaft axial mounting.
Claims20
Camshaft adjuster for adjusting and fixing the phase position of a camshaft of an internal combustion engine in relation to a phase position of a crankshaft, comprising:
- a timing gear which is driven by the crankshaft;
- and
- an output part which is secured on the camshaft, attached to the camshaft or to an extension of the camshaft and is driven by the timing gear via a hydraulic actuating drive,
- the hydraulic actuating drive comprising at least one pair of hydraulic pressure chambers operating towards each other,
- the pressure chambers being supplied with pressure medium via a pressure medium distributor and pressure medium lines, the pressure medium distributor being fastened within the camshaft and having a radially extending shoulder,
- the radially extending shoulder of the pressure medium distributor and a portion of the camshaft adjuster together with a component secured on the cylinder head form a camshaft axial bearing,
- the component secured on the cylinder head engages around the camshaft in a region between the camshaft adjuster and the radially extending shoulder, and
- the pressure medium distributor rotates with the camshaft.
Camshaft adjuster for adjusting and fixing the phase position of a camshaft of an internal combustion engine in relation to a phase position of its crankshaft, comprising:
- a timing gear which is driven by the crankshaft;
- and
- an output part which is secured on the camshaft, attached to the camshaft or to an extension of the camshaft and is driven by the timing gear via a hydraulic actuating drive,
- the hydraulic actuating drive comprising at least one pair of hydraulic pressure chambers operating towards each other,
- the pressure chambers being supplied with pressure medium via a pressure medium distributor and pressure medium lines, the pressure medium distributor being fastened within the camshaft and including a radially extending shoulder,
- the radially extending shoulder of the pressure medium distributor, together with a component secured on the cylinder head, form a camshaft axial bearing,
- the component secured on the cylinder head engages around the camshaft in a region between the camshaft adjuster and the radially extending shoulder, and
- the pressure medium distributor rotates with the camshaft.
Dependencies are inferred from the claim text.