Using engine and cartridge thermistors to determine how long to open a fuel valve to charge the cylinder

摘要

Disclosed is a fastening apparatus with fastening elements driven by a piston mounted within a cylinder of an internal combustion engine and forming, with a cylinder head, a combustion chamber. The apparatus includes a cartridge housing for a gas cartridge, means for injecting gas from a cartridge into the combustion chamber and a management module, with a thermistor being provided to be subjected to the temperature of the chamber. A second thermistor cartridge is provided to be subjected to the temperature of the gas cartridge disposed in the cartridge housing. Both thermistors are mounted for transmitting their temperature information to the management module. The management module is operable for managing the temperature information and determining the opening time of the injection means. The cartridge housing extends substantially in parallel to the piston in the casing of the apparatus, the engine thermistor is implanted into the combustion chamber and the cartridge thermistor is implanted into the cartridge housing.