Valve for opening and closing a tube

Details Valve for opening and closing a tube Valve for opening and closing a tube

2005-05-10

2005-05-10

Kamen, Noah P. (Department: 3747)

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

C251S162000

Reexamination Certificate

active

06889649

ABSTRACT:
A valve, particularly a switching cylinder, for opening and closing a pipe, especially for use in an intake manifold for a multi-cylinder internal combustion engine having an air distribution chamber and individual intake pipes positioned next to one another which terminate in a flange, in which the valve is positioned in an individual intake pipe to close or open the respective intake pipe, and the valve has at least one sealing system mounted in a radially movable manner such that, in the closed position, it presses against the pipe inner wall to form a seal, and in the open position and in the pivot range from the closed position to the open position, it forms a gap between the valve and the pipe inner wall.

REFERENCES:
patent: 2501635 (1950-03-01), Schmidt
patent: 5901677 (1999-05-01), Ohrnberger et al.
patent: 6138628 (2000-10-01), Alex et al.
patent: 6598853 (2003-07-01), Appleford et al.
patent: 4344504 (1993-12-01), None
patent: WO 9842966 (1998-10-01), None

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