Oscillating anchor pump used in household appliances, e.g. coffee machines comprises a sliding surface formed as a sealing surface for sealing the cylinder of a pump housing during axial displacement of a plunger using a sealing element

摘要

Oscillating anchor pump (1) comprises a sliding surface formed as a sealing surface for sealing the cylinder of a pump housing (2) during axial displacement of a pump plunger using a sealing element. Independent claims are also included for the following: (1) Pump plunger for the above pump; (2) Pump housing for the above pump; and (3) Method for the production of an oscillating anchor pump. Preferred Features: The sealing and sliding surface is produced by deep drawing in the axial direction. The pump plunger is mounted in the pump housing so that it does not twist.