Patent ID: 8485152
Filing Date: 2013-07-16
Classification: F01L

Abstract:
1. Switchable device for supplying pressure to at least one load of an internal combustion engine, comprising: a cavity formed within a camshaft, a first displacement element that is arranged in the cavity and is displaceable between a first end position and a second end position, the first displacement element is provided with a first pressure surface that at least partially borders, together with a wall of the cavity, a first storage space, a first force accumulator interacting with the first displacement element, the first displacement element is displaceable through pressurization of the first storage space against a force of the first force accumulator from the first end position into the second end position, a locking mechanism for locking the first displacement element in the second end position, a switch mechanism actuated by an actuator with a switch element that can be brought into at least first and second switch positions and interacts with the locking mechanism so that the locking of the first displacement element in the first switch position is maintained and in the second switch position is released, a second displacement element that is arranged in the cavity and is displaceable between a first end position and a second end position, wherein the second displacement element is provided with a second pressure surface that at least partially borders, together with the wall of the cavity, a second storage space, a second force accumulator interacting with the second displacement element, the second displacement element is displaceable by pressurization of the second storage space against a force of the second force accumulator from the first end position into the second end position, and the first storage space and the second storage space communicate with each other and are connectable in a fluid-conducting manner to a pressure source.