Gear pump having optimal axial play
AssigneeGKN Sinter Metals Holding GmbH
InventorsJosef Bachmann, Rolf Schwarze
Life of this patent
Estimating the term…
Abstract
The invention relates to a pump, in particular an oil pump, for internal combustion engines, comprising a pump case, with the pump case comprising a pump lid and a pump flange, with at least one toothed wheelset being arranged between the pump lid and the pump flange and the pump lid and the pump flange being connected via at least one distance element.
Claims20
A pump, in particular an oil pump, for internal combustion engines having a pump case comprising:
- a pump lid;
- a pump flange;
- at least one planetary rotor set;
- and
- at least one distance element;
- wherein at least one planetary rotor set is arranged between said pump lid and said pump flange;
- wherein said pump lid and said pump flange are connected to each other via at least one distance element;
- wherein said distance element has a lower heat expansion coefficient than said pump lid, said pump flange, and/or said planetary rotor set.
An oil pump, for internal combustion engines having a pump case, the oil pump comprising:
- a pump lid, said pump lid comprising a collar;
- a pump flange;
- at least one planetary rotor set;
- at least one distance element;
- and
- a circular pump disc;
- wherein said planetary rotor set is arranged between said pump lid and said pump flange;
- wherein said pump lid and said pump flange are connected to each other via at least one distance element;
- wherein said pump disc is secured between said pump lid and said pump flange by at least one distance element;
- wherein said collar extends over said circular pump disc;
- wherein said distance element has a lower heat expansion coefficient than said pump lid, said pump flange, said toothed wheelset, and/or said pump disc.
A pump, in particular an oil pump, for internal combustion engines having a pump case comprising:
- a pump lid;
- at least one planetary rotor set;
- at least one distance element;
- and
- a compact pump case;
- wherein at least one planetary rotor set is arranged between said pump lid and said compact pump case;
- wherein said pump lid and said compact pump case are connected to each other via at least one distance element;
- wherein said distance element has a lower heat expansion coefficient than said pump lid, said planetary rotor set, and/or said compact pump case.
Dependencies are inferred from the claim text.