Muffler system

Details Muffler system Muffler system

1989-09-26

1991-07-09

Brown, Brian W.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181282, F01N 710

Patent

active

050296680

ABSTRACT:
A muffler system for a working vehicle, particularly a lawn mower, comprising a main muffler body connected to an exhaust manifold of the engine, and a curved muffler cover covering the main muffler body from below. An exhaust pipe extends from the main muffler body laterally outwardly of the vehicle body, and defines an exhaust outlet for discharging exhaust gas in a direction away from a front wheel and the ground. Cooling air is blown by a cooling fan from the engine into the muffler cover. The muffler cover defines air exhaust openings for directing the cooling air forwardly of the vehicle body.

REFERENCES:
patent: 2658580 (1953-11-01), Trembley
patent: 3795287 (1974-03-01), Rose
patent: 3987766 (1976-10-01), Welck
patent: 4265332 (1981-05-01), Presnall et al.
patent: 4471853 (1984-09-01), Callaghan et al.
patent: 4741411 (1988-05-01), Stricker
patent: 4766983 (1988-08-01), Tamba et al.

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