초록 ▼

Embodiments of supercharged internal combustion engines employing improved induction systems for providing better performance at idle low speeds and upon acceleration. A simplified bypass and pressure relief system is incorporated in each embodiment for permitting the engine to induct air directly a

Embodiments of supercharged internal combustion engines employing improved induction systems for providing better performance at idle low speeds and upon acceleration. A simplified bypass and pressure relief system is incorporated in each embodiment for permitting the engine to induct air directly and independently of the supercharger at low speeds and on acceleration from low speed. A pressure relief valve is also incorporated for relieving excess pressure from the supercharger back to the bypass in the event of excessive supercharger pressures. The system also embodies a fuel injection device that has the pressure of fuel injection controlled in relation to the pressure in the intake passage into which it discharges. Furthermore, an auxiliary induction system is provided for inducing turbulence in the intake charge at low engine speeds to improve efficiency under these conditions.

대표청구항 ▼

An induction system for a supercharged internal combustion engine having an intake device comprising a plenum chamber defined in part by a separable planar wall, said intake device having an outlet communicating said plenum chamber with a chamber of the engine, a supercharging inlet communicating wi

An induction system for a supercharged internal combustion engine having an intake device comprising a plenum chamber defined in part by a separable planar wall, said intake device having an outlet communicating said plenum chamber with a chamber of the engine, a supercharging inlet communicating with said intake device plenum chamber for delivering a boosted charge thereto, an atmospheric inlet communicating with said intake device plenum chamber through first check valve means supported in said wall, said first check valve means being adapted to close when the pressure in said intake device plenum chamber exceeds the pressure at said atmospheric inlet by a predetermined amount, and second check valve means supported in said wall communicating said intake device plenum chamber with said atmospheric inlet, said second check valve means being adapted to open when the pressure in said intake device plenum chamber exceeds a predetermined value.