초록 ▼

An electric air pump having multiple impellers parallel mounted on the same motor shaft and typically employed for providing a source of low pressure, high volume air for charging inflatable devices. The multiple impellers provide improved motor efficiency in heat dissipation and air volume delivery

An electric air pump having multiple impellers parallel mounted on the same motor shaft and typically employed for providing a source of low pressure, high volume air for charging inflatable devices. The multiple impellers provide improved motor efficiency in heat dissipation and air volume delivery when compared to a single impeller motor operating at the same RPM, and exhibits a near zero True Indicator Reading (TIR). In its most fundamental embodiment, the electric air pump having multiple impellers exhibits a construction including an outer housing having an air intake port and an air exhaust port. An electric motor is mounted within the outer housing and includes a rotating output shaft. A plurality of air impellers each parallel mounted on the rotating output shaft is employed for drawing a volume of air through the air intake port and across the electric motor. An air compressor chamber is positioned between the electric motor and the air impellers for collecting the air while the air impellers compress and exhaust the air through the air exhaust port for providing a supply of pressurized air.

대표청구항 ▼

[ What is claimed is:] [1.]1. An electric air pump comprising:an outer housing having an air intake port and an air exhaust port;an electric motor mounted within said outer housing, said electric motor having a rotating output shaft;a plurality of air impellers each having a plurality of fins and ea

[ What is claimed is:] [1.]1. An electric air pump comprising:an outer housing having an air intake port and an air exhaust port;an electric motor mounted within said outer housing, said electric motor having a rotating output shaft;a plurality of air impellers each having a plurality of fins and each parallel mounted on said rotating output shaft for drawing a volume of air through said air intake port and across said electric motor; andan air compressor chamber positioned between and in mechanical communication with said electric motor and said air impellers and being stationarily mounted to said electric motor, said air compressor chamber having a plurality of centrifugal channels for directing said air through a plurality of windows and a corresponding plurality of triangular depressions to said air impellers, said air impellers compressing and exhausting said air through said air exhaust port for providing a supply of pressurized air.