Claims
- 1. A switchable support element (1) for a finger lever of a valve train of an internal combustion engine, said support element (1) being installed in a cylinder head of an internal combustion engine and comprising an outer housing (3), an inner element (6), a slide (12) and a housing (2) for the slide (12), said outer housing (3) being installed in a reception (4) of the cylinder head (5) and receiving the inner element (6) for axial displacement, a bore (8) provided in the inner element (6) and a bore (9) provided in the outer housing (3) being aligned to each other in a relative axial position, the slide (12) being at least partially displaceable out of the housing (2) into said bores (8, 9) for coupling the inner element (6) to the outer housing (3), and the housing (2) being seated in the cylinder head (5) with an inner end (10) adjacent the bore (9) of the outer housing (3), characterized in that the inner end (10) of the housing (2) comprises an annular extension (11) that is installed in the bore (9) of the outer housing (3), or that the inner end (10) of the housing (2) is connected to the outer housing (3) by a flange (25), and the slide (12) is adapted to be operated electromagnetically while being configured as an actuator rod with an armature plate (14, 18) (FIGS. 1, 2, 6).
- 2. A support element according to the preamble of claim 1, wherein said slide (12) is hydraulically displaceable and configured as a piston rod with a pressure plate (19, 19a).
- 3. A support element according to claim 1, characterized in that the bores (8, 9) of the, inner element (6) and the outer housing (3) extend in radial direction, and the bore (8) of the inner element (6) is made as a pocket bore.
- 4. A support element according to claim 3, characterized in that a hydraulic clearance compensation element (7) is installed in the inner element (6), and an axial line of the bore (8) of the inner element (6) intersects the clearance compensation element (7).
- 5. A support element according to claim 1, characterized in that the slide (12) is displaceable in uncoupling direction by the force of at least one spring means (15, 20) including a compression spring and in coupling direction, by the force of an electromagnet (13) or by a hydraulic medium.
- 6. A support element according to claim 1, characterized in that the slide (12) is displaceable in coupling direction by the force of at least one spring means (16, 21) including a compression spring and in uncoupling direction, by the force of an electromagnet (17) or by a hydraulic medium.
- 7. A support element according to claim 1, characterized in that the annular extension (11) is made separately from the housing (2) (FIG. 5).
- 8. A support element according to claim 7, characterized in that on an end nearer the housing (2), the annular extension (11) comprises an annular groove (22) having a locking ring (23) through which the housing (2) forms a snap connection (24) with the annular extension (11).
Parent Case Info
This application claims priority from provisional application No. 60/237,301, filed Oct. 2, 2000.
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Number |
Date |
Country |
4422340 |
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Provisional Applications (1)
|
Number |
Date |
Country |
|
60/237301 |
Oct 2000 |
US |