Cold-start engine priming and air purging system
Patent
·
OSTI ID:5377295
This paper describes a system from priming an internal combustion engine which includes a carburetor having an air intake. The system comprising: pump means coupled to a fuel supply and responsive to an electrical priming control signal for selectively supplying fuel under pressure, means coupled to the pump means and positioned in the air intake for feeding fuel under pressure from the pump means into the air intake, and electronic control means including means responsive to an operator for initiating a priming operation, temperature sensor means coupled to the engine and responsive to temperature thereof, means responsive to the operation-initiating means and to the temperature sensor means for supplying the priming control signal to the pump means for a time duration which varies as a function of engine temperature, and means responsive to the operation-initiating means and coupled to the control-signal-supplying means for preventing resupply of the priming control signal for a preselected fixed time duration that is independent of the operation-initiating means and of engine temperature.
- Assignee:
- Walbro Corp., Cass City, MI
- Patent Number(s):
- US 4848290
- Application Number:
- PPN: US 7-118629A
- OSTI ID:
- 5377295
- Country of Publication:
- United States
- Language:
- English
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