Water heater blower assembly having a low exhaust port
US11015836B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2016 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Nov 17, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H1/205
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A draft inducer blower assembly for use with a water heater has a housing, a motor, and a fan. The housing has an exhaust volute surrounding the fan and a base adapted to be mounted atop a water heater. The base has an inlet port adapted to receive exhaust gas from the water heater. The fan is connected to the motor for rotation about a rotation axis. The exhaust volute and the base are non-adjustably fixed relative to each other. The exhaust volute has a cut-off at a cut-off angle relative to the rotation axis. The cut-off angle extends at an angle that is no more than twenty degrees positive from horizontal. The exhaust volute has an exhaust outlet passageway that extends to an exhaust port. The exhaust outlet passageway extends beneath the cut-off before reaching the exhaust port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.