Electronic controller for regulating temperature within an internal combustion engine system
US4549504A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1984 |
| Grant date | Oct 29, 1985 |
| Priority date | — |
| Expiry date | Jul 19, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/24
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The temperature controller employs a single thermistor temperature sensor providing an analog signal indicative of engine system temperature. The analog signal is compared with a plurality of separate threshold temperatures to produce a multiplicity of separate temperature signals representing different temperature ranges across the operating temperature spectrum of the engine system. These separate temperature signals are processed through digital logic gating circuitry to provide sequentially occurring outputs on parallel output leads. The sequentially occurring outputs sequentially activate different heat dissipating mechanisms within the engine system to maintain a substantially constant temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.