Apparatus for selectively lowering intake manifold pressure of t

Details Apparatus for selectively lowering intake manifold pressure of t Apparatus for selectively lowering intake manifold pressure of t

1993-11-16

1995-08-01

Koczo, Michael

Power plants

Fluid motor means driven by waste heat or by exhaust energy...

With supercharging means for engine

1374925, F02B 3700

Patent

active

054371562

ABSTRACT:
In an internal combustion engine equipped with a turbocharger and a compression release engine brake, excessive stress in the engine and engine brake during operation of the engine brake at relatively high engine speeds is prevented by limiting the intake manifold pressure increase produced by the turbocharger, particularly at higher engine speeds. When the engine brake is turned on, a pressure sensor is enabled to sense the gas pressure in the intake manifold. When the pressure sensor detects that the intake manifold pressure is above a predetermined threshold level, the pressure sensor applies gas from the intake manifold to a pneumatic actuator. The pneumatic actuator opens a pressure relief valve which releases gas from the intake manifold to the ambient atmosphere.

REFERENCES:
patent: 912503 (1909-02-01), Squires
patent: 3220392 (1985-11-01), Cummins
patent: 4429532 (1984-02-01), Jakuba
patent: 4688384 (1987-08-01), Pearman et al.

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