Noise reducing system

Details Noise reducing system Noise reducing system

1998-02-06

2000-02-01

Avila, Stephen

Marine propulsion

Jet drive

440 89, B63H 1100

Patent

active

060196483

ABSTRACT:
A noise reducing system for a personal watercraft. The system includes a pump insulating system which insulates the pump housing from the hull. More particularly, the pump insulating system includes at least one insulating attachment for connecting a pump housing to a supporting surface of a personal watercraft. Such insulating attachment includes an insulator having a portion mounted between the pump housing and the supporting surface. Advantageously, the system also includes a resonator and a shield, both mounted on the exhaust system, and an insulating material mounted inside an air intake pipe.

REFERENCES:
patent: 4629432 (1986-12-01), Dyrkorn et al.
patent: 5310368 (1994-05-01), Kamitake
patent: 5460553 (1995-10-01), Craig et al.

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