Throughflow vacuum motor with reverse airflow
AssigneeAmetek, Inc.
InventorsDavid B. Finkenbinder, Robert A. Ciccarelli, Jr.
Life of this patent
Estimating the term…
Abstract
A throughflow motor assembly includes a motor assembly having a rotatable shaft and a housing with a motor assembly mounted to one end and a housing opening therethrough. A fan assembly is rotated by the rotatable shaft and received in the housing at an end opposite the motor assembly. The housing includes a partition which partitions the fan assembly and the motor assembly from one another, and includes at least one centrally located flow passage extending therethrough. The fan assembly draws air over the motor assembly, through the housing opening and at least one centrally located flow passage, and then into the fan assembly which exhausts the air.
Claims19
A throughflow motor assembly, comprising:
- a motor assembly having a rotatable shaft and a predetermined geometry;
- a housing having said motor assembly mounted to one end thereof, said housing having a housing opening therethrough;
- a fan assembly rotated by said rotatable shaft and received in said housing at an end opposite said motor assembly;
- said housing having an internal collar wall and a partition which partitions said fan assembly and said motor assembly from one another, said partition extending radially from said internal collar wall and having at least one centrally located flow passage extending therethrough;
- a plurality of guide vanes extending radially from said internal collar wall and axially from said partition;
- and
- said fan assembly drawing air over said predetermined geometry of said motor assembly in a turbulent flow, and then through said housing opening where the air is impacted against said plurality of guide vanes to thereby stabilize the air and transform the air from the turbulent flow to a laminar flow, and then through said at least one centrally located flow passage, and then into said fan assembly which exhausts the air.
A throughflow motor assembly, comprising:
- a motor assembly having a shaft and a predetermined geometry;
- a housing having said motor assembly carried at one end thereof, said housing having a housing opening therethrough;
- a fan assembly rotated by said shaft and carried by said housing at an end opposite said motor assembly, said housing having a partition which separates said fan assembly from said motor assembly in said housing, said partition having a passage therethrough, said partition extending radially from an inner portion of said housing;
- a diffuser end plate connected to said housing and forming a fan chamber which receives said fan assembly, said diffuser end plate having a plurality of plate openings extending therethrough and disposed about an outer periphery thereof;
- and
- a plurality of guide vanes extending axially from said partition, said plurality of guide vanes extending radially between said inner portion of said housing and a centrally located partition bearing collar carried by said partition;
- wherein rotation of said fan assembly draws air over said predetermined geometry of said motor assembly in a turbulent flow, and then through said housing opening where the air is impacted against the plurality of guide vanes to thereby stabilize the air and transform the air from the turbulent flow to a laminar flow, and then through said passage, and then through said plurality of plate openings which exhaust the air.
Dependencies are inferred from the claim text.