Patent ID: 6321536
Filing Date: 2001-11-27
Classification: F02B,F02D,F02M,Y02T

Abstract:
A pneumatic throttle system, comprising:an engine having an intake manifold and an exhaust manifold;a throttle plate operative to restrict gas flow from the exhaust manifold, positioned in pneumatic communication with the exhaust manifold; anda pneumatic actuator assembly further comprising:a housing having an air intake portion and an exhaust portion;a piston head movably positioned in the housing and separating the intake and exhaust portions;a piston tail portion extending from the piston head portion and operationally connected to the throttle plate;a first gas inlet formed in the intake portion; anda second gas inlet formed in the exhaust portion;wherein the first gas inlet is pneumatically connected to the intake manifold;wherein the second gas inlet is pneumatically connected to the exhaust manifold;wherein the piston head moves in the housing in response to changes in intake manifold pressure relative to exhaust manifold pressure; andwherein movement of the piston actuates operation of the throttle plate.