Fuel metering diaphragm with backing plate
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United States of America Patent
Stats
-
May 12, 2015
Grant Date -
Sep 12, 2013
app pub date -
Feb 20, 2013
filing date -
Mar 7, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In at least some implementations, a carburetor having a fuel metering system including a diaphragm assembly that moves in response to pressure changes in a metering chamber to actuate a metering valve may include a flexible diaphragm adapted to carried by a body of the carburetor at a periphery to define part of the metering chamber. The portion of the diaphragm that defines part of the metering chamber defines a chamber projected area of the diaphragm. A backing plate is attached to the flexible diaphragm and arranged to be located outside the metering chamber. The backing plate having an outer perimeter defining a plate projected area, wherein an area ratio of the plate projected area to the chamber projected area is greater than about 0.1.
First Claim
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- F02M Class
- 8.59 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 12, 2026 |
