Patent ID: 11885352
Assignee: HAMILTON SUNDSTRAND CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A variable channel diffuser comprising:
a shroud;
a backing plate;
a channel plate adjacent to the backing plate such that the channel plate is between the shroud and the backing plate;
a floor plate adjacent to the shroud such that the floor plate is between the shroud and the channel plate, wherein the floor plate is movable relative to the channel plate
a floor cavity defined by the floor plate and the shroud, wherein air at servo pressure is supplied to the floor cavity to move the floor plate relative to the divider plate, and wherein the air at servo pressure is a mixture of ambient pressure air and compressed pressure air mixed by a servo pressure source upstream from the floor cavity;
a plurality of standoffs formed on the floor plate; and
a plurality of recessed areas formed in the channel plate, wherein a standoff of the plurality of standoffs and a recessed area of the plurality of recessed areas define a channel for fluid flow, each channel having an area which is variable through movement of the floor plate relative to the channel plate.