| 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. To provide further dampening an elongate body of resilient foam material may be disposed in each chamber.
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