Camshaft adjusting assembly

摘要

A camshaft adjustment assembly (1), wherein a control valve (4) is provided for controlling the flow of the pressure fluid in the hydraulic chamber, wherein the control valve (4) is supplied with pressure fluid from the region of a camshaft bearing (5) by a fluid channel (6, 7, 8, 9). In order to enable an improved fluid line with little component weakening, the fluid channel (6, 7, 8, 9) is formed as an annular chamber (6), which is formed between the axial end (10) of the camshaft (2) at least sections of which have a tubular design, a flange-like section (11) of a housing element (12) that is connected rotationally fixed to the camshaft (2) and in which the control valve (4) is mounted, a radially inner delimiting surface (13) of the housing element (12), and a section (14) of the wall of the camshaft bearing (5).

主权项

1. A camshaft adjusting arrangement for varying a relative angular position of a camshaft with respect to a crankshaft of an internal combustion engine, the camshaft adjusting arrangement comprises a drive element which is driven by the crankshaft and which is mounted so as to be rotatable relative to the camshaft, between the drive element and the camshaft there are formed at least two hydraulic chambers which are charged with a pressurized fluid in order to set a defined relative rotational position between the drive element and the camshaft, the camshaft has a tubular axial end supported in a camshaft bearing, a control valve including a valve housing and a movable control spool is provided to control a flow of the pressurized fluid into the hydraulic chambers, the control valve is supplied with pressurized fluid directly from a region of a camshaft bearing via a fluid channel, the fluid channel comprises an annular chamber which is defined by an axial end face of the tubular axial end of the camshaft, a flange portion of a housing element which is rotationally fixedly connected to the camshaft and into which the control valve is installed, a radially inner delimiting surface of the housing element, and a portion of a wall of the camshaft bearing.