초록 ▼

A muffler construction, particularly for exhaust gases of air-operated tools, comprises, a tubular sleeve having a passage therethrough, an exhaust gas pipe connected into the sleeve and defining a restricted flow passage with the sleeve, first and second opposed cylindrical coaxial shell sections,

A muffler construction, particularly for exhaust gases of air-operated tools, comprises, a tubular sleeve having a passage therethrough, an exhaust gas pipe connected into the sleeve and defining a restricted flow passage with the sleeve, first and second opposed cylindrical coaxial shell sections, each having a closed end wall at their respective outer ends and facing in opposite directions engaged with the exhaust gas pipe, and sidewalls spaced radially outwardly from the sleeve. The exhaust gas pipe has a gas pipe discharge and there are partition walls in the shell sections defining a first expansion chamber and at least one additional expansion chamber. A constricted flow passage is defined between the first expansion chamber and the at least one additional expansion chamber with sealing and enclosing members closing the sidewalls of the first and second shell sections so as to define the first expansion chamber and at least one additional expansion chamber within the shell sections. The exhaust gases from the discharge enter into the first expansion chamber and form a vortex therein with the gases then flowing into the restricted passage into the additional chamber wherein a second vortex is generated. A final gas discharge is defined in the wall of the second shell sections which communicates with the atmosphere.

대표청구항 ▼

A muffler construction, particularly for exhaust gases of air-operated tools, comprising, a tubular sleeve having a passage therethrough, exhaust gas pipe means extending into said sleeve and defining a constricted flow passage with said sleeve, a shell having first and second opposed cylindrical co

A muffler construction, particularly for exhaust gases of air-operated tools, comprising, a tubular sleeve having a passage therethrough, exhaust gas pipe means extending into said sleeve and defining a constricted flow passage with said sleeve, a shell having first and second opposed cylindrical coaxial shell sections, each having an end wall at their respective outer ends and facing in opposite directions engaged with said exhaust gas pipe means, and side walls spaced radially outwardly from said sleeve, said exhaust gas pipe means having a gas pipe discharge, partition means in said shell section defining a first expansion chamber and at least one additional expansion chamber, said constricted flow passage extending between said first expansion chamber and said at least one additional expansion chamber, sealing and enclosing means closing said sidewalls of said first and second shell sections so as to define the first expansion chamber and at least one additional expansion chamber within said shell sections, the exhaust gases from said discharge entering into said first expansion chamber and forming a vortex therein with the gases then flowing into said constricted passage into said one additional expansion chamber to form an additional vortex, and a final gas discharge defined in said wall of said second shell section communicating with said additional expansion chamber.