Instantaneous Heater for a Smoke Generator

Abstract

An instantaneous heater for a smoke generator includes a heating rod having first and second sections. The second section is connected to a power supply system of a smoke generator. An outer tube is mounted around the heating rod. An end cap is sealing mounted to a first end of the outer tube and covers the first section of the heating rod. The outer periphery of the heating rod, the inner periphery of the outer tube, the end cap, and the connection cap together defines a heating passage intercommunicating with an outlet of the end cap. A connection cap is sealingly mounted around a second end of the outer tube. The connection cap includes a coupling hole intercommunicating with the heating passage. A guiding tube is mounted between the coupling hole of the connection cap and an oil tank of the smoke generator.

1 . An instantaneous heater for a smoke generator comprising:
 a heating rod including a first section and a second section, with the heating rod further including an outer periphery extending from the first section through the second section, with the second section of the heating rod adapted to be connected to a power supply system of a smoke generator;   an outer tube mounted around the heating rod, with the outer tube including a first end facing the first section of the heating rod and a second end facing the second section of the heating rod, and with the outer tube further including an inner periphery extending from the first end through the second end of the outer tube;   an end cap sealing mounted to the first end of the outer tube, with the end cap including an outlet, with the end cap covering the first section of the heating rod, with the outer periphery of the heating rod, the inner periphery of the outer tube, the end cap, and the connection cap together defining a heating passage intercommunicating with the outlet of the end cap;   a connection cap sealingly mounted around the second end of the outer tube, with the connection cap including a coupling hole intercommunicating with the heating passage; and   a guiding tube including a first end coupled to the coupling hole of the connection cap, with the guiding tube further including a second end adapted to be connected to an oil tank of the smoke generator.   
     
     
         2 . The instantaneous heater for a smoke generator as claimed in claim I, further comprising: a flow guiding member, with the inner periphery of the outer tube defining a chamber, with the flow guiding member being helical, with the flow guiding member received in the chamber of the outer tube and located between the inner periphery of the outer tube and the outer periphery of the heating rod, with the flow guiding member including an outer periphery abutting the inner periphery of the outer tube, with the flow guiding member further including an inner periphery abutting the inner periphery of the outer tube, with the heating passage being helical. 
     
     
         3 . The instantaneous heater for a smoke generator as claimed in  claim 1 , with the inner periphery of the outer tube being helical, with the inner periphery of the outer tube including a helical crest abutting the outer periphery of the heating rod, and with the inner periphery of the outer tube further including a helical root spaced from the outer periphery of the heating rod, and with the heating passage being helical. 
     
     
         4 . The instantaneous heater for a smoke generator as claimed in  claim 1 , with the outer periphery of the heating rod being helical, with the outer periphery of the heating rod including a helical crest abutting the inner periphery of the outer tube, with the outer periphery of the heating rod further including a helical root spaced from the inner periphery of the outer tube, and with the heating passage being helical. 
     
     
         5 . The instantaneous heater for a smoke generator as claimed in  claim 1 , with the end cap including a compartment defined in an end face thereof, with the compartment including a bottom wall having an abutment face, with the first section of the heating rod having an end face abutting the abutment face of the end cap, and with the end cap further including a plurality of guiding grooves defined in the abutment face.