Patent ID: 9739149
Date: 2017-08-22
CPC Classifications: F01C,F04C

Claim:
1. A vane pump assembly, comprising: a housing having an open chamber that is circular in shape when viewed in cross-section and having an inner wall that surrounds said open chamber; a rotor rotatably disposed in said open chamber of said housing, said rotor being circular in shape when viewed in cross-section and having a diameter, said rotor having at least one through-passage which extends diametrically across said rotor, and said rotor having a center that is offset from a center of said circular open chamber of said housing; a vane body made of two pieces that are fixedly attached with one another to prevent relative movement between said multiple pieces such that said vane body has a fixed length during operation of said vane pump assembly; each of said pieces of said vane body including a total of three legs with one of said legs being inserted between and locked with two of said legs of said other piece; and said vane body being slidably disposed in said through-passage of said rotor and having a length that is greater than said diameter of said rotor for articulating back and forth as a single unit in said through-passage of said rotor to seal against said inner wall of said housing through centrifugal force in response to rotation of said rotor.