1979-02-01

The Influence of Mountings on Injection Pump Noise 790273

As new designs of diesel engine, which emit less noise, are evolved to meet increasingly stringent noise legislation, noise from diesel fuel injection equipment could become a significant proportion of the total noise from the engine. Quieter fuel injection pumps are being produced for such engines by Lucas CAV, however their potential will not be realised unless special care is taken in the design of pump drive and mounting brackets. Impacts from the sudden take-up of backlash in the drive to the pump, and vibration of the engine surfaces to which the pump is secured, can increase pump-radiated noise considerably.

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