Muffler with variable damping characteristics
First Claim
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1. A muffler with variable damping characteristic for pulsating gases, consisting essentially of:
- a housing;
a gas inlet tube arranged to pass into the housing;
a plurality of tubes arranged in the housing so as to be in fluid communication with the gas inlet tube, one of the tubes being directly connected to the gas inlet tube;
a valve disk movably arranged to open and close one of the gas inlet tube and the tube connected to the gas inlet tube, the valve disk having a rest position in which the one of the gas inlet tube and the tube connected to the gas inlet tube is sealed;
a corrugated tube having a fixed end attached to the housing, and a movable end connected to the valve disk so as to move the valve disk;
a gas discharge tube arranged to pass out of the housing and in fluid communication with the plurality of tubes; and
a source of reduced pressure connected to an interior of the corrugated tube so that control pressure for opening and closing of the valve disk is only provided by gas passing through the tubes.
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Abstract
A muffler having a movable valve disk, with the help of which at least one of the tubes in the muffler housing can be opened and closed. The actuation organ for the valve disk is a corrugated tube, the fixed end of which is placed into an opening in the housing and the interior of which is connected to the atmosphere. As a result, the total pressure loss of the muffler is available as an actuation force.
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Citations
14 Claims
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1. A muffler with variable damping characteristic for pulsating gases, consisting essentially of:
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a housing; a gas inlet tube arranged to pass into the housing; a plurality of tubes arranged in the housing so as to be in fluid communication with the gas inlet tube, one of the tubes being directly connected to the gas inlet tube; a valve disk movably arranged to open and close one of the gas inlet tube and the tube connected to the gas inlet tube, the valve disk having a rest position in which the one of the gas inlet tube and the tube connected to the gas inlet tube is sealed; a corrugated tube having a fixed end attached to the housing, and a movable end connected to the valve disk so as to move the valve disk; a gas discharge tube arranged to pass out of the housing and in fluid communication with the plurality of tubes; and a source of reduced pressure connected to an interior of the corrugated tube so that control pressure for opening and closing of the valve disk is only provided by gas passing through the tubes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification