Vane pumps with vane wear detection

Patent metadata

Field	Value
Publication number	US-9828992-B2
Application number	US-201514795338-A
Country	US
Kind code	B2
Filing date	Jul 9, 2015
Priority date	Jul 9, 2015
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

A vane pump includes a liner defining a cammed inner surface, a rotor rotatably disposed within the liner that has a plurality of vane slots, and a plurality of vanes slidably disposed within vane slots of the rotor and configured to extend away from the rotor and contact the cammed inner surface of the liner. The plurality of vanes include at least one sentinel vane that is configured to allow detection of wear on the sentinel vane.

First claim

What is claimed is:

1. A vane pump, comprising:
a liner defining a cammed inner surface;
a rotor rotatably disposed within the liner and including a plurality of vane slots;
a plurality of vanes slidably disposed within vane slots of the rotor and configured to extend away from the rotor and contact the cammed inner surface of the liner, wherein the plurality of vanes include at least one sentinel vane that is configured to allow detection of wear on the sentinel vane;
where…

Assignees

• Hamilton Sundstrand Corp

Inventors

• Stambaugh Sr Craig T

Classifications

• F04C14/28 Primary

  Mechanical Engineering · mapped topic

• F04C28/28

  Mechanical Engineering · mapped topic

• F04C2270/86

  Mechanical Engineering · mapped topic

• F04C18/3448

  Mechanical Engineering · mapped topic

• F04C18/3442

  Mechanical Engineering · mapped topic