摘要 |
A pressure pulse damper for a vehicle fuel pump which dampens output fuel pressure pulses and reduces audible noise emanating from the pump. The damper is a thin-wall tube pinched off and sealed at its ends to form at least one chamber, with a compressible gas sealed therein preferably at superatmospheric pressure. Preferably to provide multiple chambers with gas therein, the tube is also pinched together and sealed at locations between its ends.
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