Switching element for a valve train of an internal combustion engine

US12012874B2 · kind B2 · utility

Assignee

• Schaeffler Technologies AG & Co. KG · DE

Inventors

• Oliver Schnell · Weisendorf, DE
• Michael Neumann · Therwil, CH
• Peter Sailer · Erlangen, DE
• Frank Himsel · Herzogenaurach, DE
• Johannes Roith · Nuremberg, DE

Key dates

• Filing date: Jan 31, 2023
• Grant date: Jun 18, 2024
• Expiry date: Jan 31, 2043

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01L2013/0052
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The disclosure relates to a switching element comprising an external part and an internal part, which is axially displaceable in a bore of the external part. At least one radially displaceable locking element is disposed within at least one receptacle of the internal part and includes a flattened portion on a radially outwardly directed end. At least one recess of the external part can be acted upon by a control pressure and the at least one locking element can thereby be radially displaced from the locking position into a release position. At least in a respective locking position, a chamber delimited by the at least one locking element is spatially separated from the at least one recess of the external part by a respective locking section. At least one bypass is designed, which indirectly fluidly connects the at least one recess of the external part and a respective chamber.