Tumble system for the intake manifold of an...

Details Tumble system for the intake manifold of an... Tumble system for the intake manifold of an...

2006-05-11

2010-11-02

Cronin, Stephen K (Department: 3747)

Internal-combustion engines

Means to whirl fluid before, upon, or after entry into...

C123S337000

Reexamination Certificate

active

07823558

ABSTRACT:
A tumble system for the intake manifold of an internal-combustion engine is provided with a number of cylinders. The tumble system is provided with at least one throttle valve for varying the section of passage of air through an intake pipe, which connects a cylinder with the intake manifold. The throttle valve has a throttle butterfly mounted so as to rotate under the thrust of an actuator device equipped with at least one actuator element, which is made of a shape-memory material that generates a torque by modifying its own geometry following upon application of an external stress of a physical nature.

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European Search Report for EP 05 42 5310 dated Sep. 20, 2005.

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