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US 12,006,855 B2Granted
Muffler for small engines
AssigneeOrbital Australia Pty Ltd
InventorsJohn Howard Tubb, Geoffrey Paul Cathcart, Pouria Mehrani, Mario Charles Muscat
Life of this patent
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AssigneeOrbital Australia Pty Ltd
InventorsJohn Howard Tubb, Geoffrey Paul Cathcart, Pouria Mehrani, Mario Charles Muscat
Estimating the term…
A muffler (40) devised particularly for use with an engine of the type used on unmanned aerial vehicles (UAVs), and a UAV (10) having an engine (30) fitted with the muffler (40). The muffler (40) comprises a body (51) having an interior chamber (60). The muffler body (51) has a first end section (53) and a second end section (55). The first end section (51) is adapted for mounting onto the engine (31) by way of a first mount (81), with the interior chamber (60) in communication with an exhaust outlet of the engine (31) to receive exhaust flow therefrom. The second end section (53) is adapted to be mounted by way of a second mount (82) in a manner resisting movement with respect to the engine (31). In one arrangement, the second mount (82) is configured to yieldingly resist movement with respect to the engine (30). In another arrangement, the second mount (82) is configured to mount the second end section (55) under a preload resisting movement of the second end section with respect to the engine (30).
A muffler adapted to be fitted to a single cylinder engine, the muffler comprising:
A muffler comprising a body having an interior chamber, a first end section, and a second end section, an outlet opening through which exhaust discharges from the muffler, the outlet opening being located between the first end section and the second end section, the first end section being adapted for mounting onto an engine with the interior chamber in communication with an exhaust outlet of the engine to receive exhaust flow therefrom, and the second end section being adapted to be mounted in a manner resisting movement with respect to the engine, the mounting being in the form of a resilient coupling which mounts the second end section with respect to the engine, wherein the resilient coupling provides a yielding resistance.
A muffler adapted to be fitted to a single cylinder engine, the muffler comprising a body having an interior chamber, a first end section, and a second end section, an outlet opening through which exhaust discharges from the muffler, the outlet opening being located between the first end section and the second end section, the first end section being adapted for mounting onto the engine with the interior chamber in communication with an exhaust outlet of the single cylinder engine to receive exhaust flow therefrom, wherein a resilient coupling mounts the second end section with respect to the engine, the resilient coupling providing a yielding resistance, such that the resilient coupling resists movement between the engine and the second end section when mounted thereto, the resilient coupling biasing the first end section into mating engagement with the engine.
A muffler comprising a body having an interior chamber and first and second end sections, an outlet opening through which exhaust discharges from the muffler, the outlet opening being located between the first end section and the second end section, a first mount for mounting the first end section onto an engine with the interior chamber in communication with an exhaust outlet of the engine to receive exhaust flow therefrom, and a second mount for mounting the second end section under a preload resisting movement of the second end section with respect to the engine, the second mount biasing the first end section into mating engagement with the engine at the first mount.
Dependencies are inferred from the claim text.