Gas metering device with spring loading device having serially arranged springs
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United States of America Patent
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Aug 2, 2016
Grant Date -
May 23, 2013
app pub date -
Nov 21, 2012
filing date -
Nov 22, 2011
priority date (Note) -
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Abstract
A gas metering valve (1) having at least one valve seat (2) and at least one closure member (3) which can be pressed against the valve seat, the closure member in a maximum open position is raised at least in regions from the valve seat (2) and in a maximum closed position is pressed against the valve seat. The gas metering valve (1) has an adjusting device (5) which is spring-loaded by a spring loading device (4) of the gas metering valve (1) for adjusting the closure member (3) in a closing direction (6) from the maximum open position into the maximum closed position. The spring loading device (4) of the adjusting device (5), preferably when viewed in the closing direction (6), has at least two spring bodies (7a, 7b) which are connected mechanically in series, the spring bodies (7a, 7b) have elastic characteristics which are different from each other.
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