Venturi type air distribution system

  • US 6,623,353 B1
  • Filed: 05/07/2002
  • Issued: 09/23/2003
  • Est. Priority Date: 05/07/2002
  • Status: Expired due to Fees
First Claim
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1. An air handling system for a building having a horizontally extending ceiling and an enclosed space, said system comprising:

  • an induction unit assembly having four induction units for mounting adjacent said ceiling, each of said units having an air mixing section forming a relatively long air mixing chamber, an elongate, horizontally extending air plenum section mounted adjacent an upper end of said air mixing chamber and having a primary air inlet formed therein, and air nozzles extending into said air mixing chamber and mounted on an upper side of said air mixing section, said air nozzles having each an inlet end located at said upper side and adapted to receive primary air from said air plenum section, wherein said air mixing section has an air outlet formed at a lower end thereof and a side air inlet for permitting return air to flow through a side of said air mixing section and into said air mixing chamber, said induction unit assembly being substantially rectangular or square in plan view, each of said induction units being located on a respective one of the four sides of the assembly, supporting members for mounting said induction units so that each air mixing section is located adjacent said ceiling during use of the system in the building, wherein during use of said system, said return air is drawn by a venturi effect created by said nozzles into each air mixing chamber and said induction units are capable of delivering a mixture of primary air, that passes through their plenum sections and said nozzles, and return air through the air outlets to said enclosed air space.

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