Method for ventilating an internal space by rotating air flow

• US 6,361,431 B1
• Filed: 11/02/2000
• Issued: 03/26/2002
• Est. Priority Date: 03/08/1999
• Status: Expired due to Fees

• Current Assignee: Michihiko Kawano
• Original Assignee: Michihiko Kawano
• Inventors: Kawano, Michihiko
• Primary Examiner(s): Joyce, Harold
• Application Number:
  US09/674,646
• Time in Patent Office: 509 Days
• Field of Search: 454/189, 454/228, 454/230, 454/231, 454/233
• US Class Current: 454/228
• CPC Class Codes: F24F 1/01 in which secondary air is induced by injector action of the primary air
• CPC Class Codes: F24F 7/007 with forced flow using ducting systems F24F7/06

Abstract

A method for ventilating an internal space by rotating air flow comprises a step of blowing out a jet of internal air having a vertically long rectangular cross section and uniform blowout velocity distribution over the cross section horizontally along the side wall of the internal space. The jet of internal air generates a horizontal rotating air flow over the whole internal space to induce a horizontally circulating air flow and a vertically circulating air flow over the whole internal space.

Claims

1. A method for ventilating an internal space by rotating air flow, the method comprising:

blowing out a jet of internal air within an internal space, the jet having a vertically long rectangular cross section and uniform blowout velocity distribution over the cross section and directed horizontally along a side wall which borders the internal space, wherein the jet is blown out through a blowout elbow provided with at least one guide vane, wherein the at least one guide vane comprises a curved plate and a straight plate connected to the curved plate, wherein the curved plate and the straight plate are disposed to make sub-channels, wherein the sub-channels are defined in shape based on the following formulas;

2. A method for ventilating an internal space by rotating air flow, the method comprising:

blowing out a jet of internal air within an internal space, the jet having a vertically long rectangular cross section and uniform blowout velocity distribution over the cross section and directed horizontally along a side wall which borders the internal space, wherein the jet is blown out through a blowout elbow provided with at least one guide vane, wherein the at least one guide vane comprises a curved plate and straight plate connected to the curved plate, wherein the curved plate and the straight plate are disposed to make sub-channels, wherein the sub-channels are defined in shape based on the following formulas;