Fuel filter heating assembly
US4091265A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1975 |
| Grant date | May 23, 1978 |
| Priority date | — |
| Expiry date | Aug 6, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A solid state fuel heater unit for use in heating the fuel flow in a fuel filter is disclosed which unit includes a heat conducting ring having a power transistor mounted thereon and driving a power resistor mounted therewithin. Circuitry for controlling the operation of the power transistor, including a thermistor, is mounted within the ring by means of component sealant or potting material which isolates the thermistor from direct transfer of heat thereto from the power transistor and power resistor. The heater unit is adapted to be immersed in the flow of fuel in a fuel filter with the axis of the ring substantially parallel to the fuel flow through the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.