Patent ID: 8813709
Filing Date: 2014-08-26
Classification: F01L,F15B

Abstract:
1. A switchable device for accumulating, storing, and supplying hydraulic fluid under pressure to at least one load of an internal combustion engine, comprising: a housing with a housing cavity, a displacement element that is arranged in the housing cavity and is displaceable between a first end position and a second end position, wherein the displacement element is provided with a pressure surface that at least partially defines, together with a housing cavity wall, a storage space that is connectable in a fluid-conducting manner to the load, wherein the storage space is connectable in a fluid-conducting manner to a pressure source, a force accumulator interacting with the displacement element, the displacement element is displaceable through pressurization of the storage space against a force of the force accumulator from the first end position into the second end position, a locking mechanism having a locking element that is connected to the displacement element, the locking element includes a locking section that engages an element connected to the housing to lock the displacement element in the second end position, a switch mechanism that is activatable by an actuator including a switch element that can be brought into at least first and second switch positions and interacts with the locking mechanism so that the displacement element can be locked or unlocked in the first switch position of the switch element and cannot be locked or cannot be unlocked in the second switch position of the switch element.