Electromotive oil pump comprising a non-return valve
AssigneeBrose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg
InventorStephan ROOS
Life of this patent
Estimating the term…
Abstract
An electrical oil pump comprising a pump housing containing an electromotively driven pump rotor, and a discharge branch arranged on the housing side and receiving a non-return valve, said valve comprising a preferably spherical closing body arranged such that it can move between a valve seat and a supporting surface, and a closing body holder which is inserted into the discharge branch, forms the supporting surface and comprises through-flow sections, said holder being inserted into the discharge branch for captive holding therein.
Claims20
An electromotive oil pump comprising:
- an electric motor;
- a pump housing including an intake nozzle and a discharge nozzle;
- a pump rotor driven by the electric motor and arranged in the pump housing;
- and
- a valve spring-free check valve including,
- a spherical closing body disposed in the intake nozzle arranged movably between a valve seat, defining a valve opening, and a supporting surface, and
- a closing body holder, having a cage-like shape, disposed in the discharge nozzle and forming the supporting surface and defining a number of throughflow portions and a first joining contour, wherein the first joining contour interacts directly or indirectly with a second joining contour defined by the discharge nozzle via a joining element to securely retain the closing body holder in the discharge nozzle.
An electric oil pump comprising:
- a pump housing including a discharge nozzle;
- a pump rotor disposed in the pump housing and configured to be electromotively driven;
- and
- a check valve arranged in the discharge nozzle and including,
- a closing body movable in the discharge nozzle, and
- a closing body holder disposed in and securely fixed to the discharge nozzle and defining throughflow portions adjoining the closing body.
An electric oil pump comprising:
- a pump housing defining a flow channel;
- a discharge nozzle extending from the housing and configured to receive fluid from the flow channel, wherein the discharge nozzle includes an inner periphery provided with a first contoured edge;
- a ball disposed between the flow channel and the discharge nozzle;
- a cage disposed in the discharge nozzle and including an outer periphery provided with a second contoured edge;
- and
- a circlip sandwiched between the first and second contoured edges configured to secure the cage within the discharge nozzle.
Dependencies are inferred from the claim text.