Switching element for a valve train of an internal combustion engine

A switching element for a valve train of an internal combustion engine for switching to different valve lifts, said switching element comprising an outer element having an inner element arranged for axial displacement therein, each of the outer element and the inner element comprising a reception aligned to each other in a relative position, at least one piston being arranged in at least one of the receptions for sliding toward the other of the receptions to couple the inner element to the outer element in said relative position, and a high-position stop for defining said relative position being arranged between the inner element and the outer element, wherein at least one part of the high-position stop is a separate piston element adjustable for entry into a recess of one of the inner element and the outer element, opposite the receptions, wherein the separate piston element comprises a first section having its outer periphery fixed in the recess of one of the inner element and the outer element, and a second section having its outer periphery engaging a guide that is made as a slot in the other of the inner element and the outer element, the guide having a length that is at least equal to a relative motion between the inner element and the outer element.

A switching element for a valve train of an internal combustion engine for switching to different valve lifts, said switching element comprising an outer element having an inner element arranged for axial displacement therein, each of the outer element and the inner element comprising a reception aligned to each other in a relative position, at least one piston being arranged in at least one of the receptions for sliding toward the other of the receptions to couple the inner element to the outer element in said relative position, and a high-position stop for defining said relative position being arranged between the outer element and the inner element, wherein at least one part of the high-position stop is configured as an adjustable, separate element, the adjustable, separate element is a piston element, having a first section disposed in a recess of the inner element and a second section engaging a guide in the outer element, said piston element being axially displaceable in the relative position and having a configuration selected for establishing an alignment of the receptions of the outer element and the inner element and for positioning the at least one piston so that mechanical lash of a predetermined value is provided between the at least one piston and at least one of the receptions.

A switching element for a valve train of an internal combustion engine for switching to different valve lifts, said switching element comprising an outer element having an inner element arranged for axial displacement therein, each of the outer element and the inner element comprising a reception aligned to each other in a relative position, at least one piston being arranged in at least one of the receptions for sliding toward the other of the receptions to couple the inner element to the outer element in said relative position, and a high-position stop for defining said relative position being arranged between the outer element and the inner element, wherein at least one part of the high-position stop is configured as an adjustable, separate element, the adjustable, separate element is a piston element, having a first section disposed in a recess of the inner element and a second section engaging a guide in the outer element, said piston element being axially displaceable in the relative position for establishing an alignment of the receptions of the outer element and the inner element, wherein the guide has a length that is at least equal to a relative motion between the outer element and the inner element.