Limited loss laminar flow dampers for heating, ventilation, and air conditioning (HVAC) systems

a technology of laminar flow and heating, which is applied in the direction of ventilation systems, lighting and heating apparatuses, heating types, etc., can solve the problems of reducing worker productivity, biological problems in indoor environments that have received considerable attention, and the operation of hvac systems is affected by biological contamination by bacteria, molds, viruses, etc., to achieve sufficiently accurate flow measurement, facilitate relatively simple flow measurement techniques, and inhibit inadvertent pressure drop and turbulence in flows
US20070262162A1Inactive Publication Date: 2007-11-15KARAMANOS JOHN C
10 Cites 43 Cited by

Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
KARAMANOS JOHN C
Publication Date
2007-11-15
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

HVAC devices, systems, and methods include dampers for controlling the flow of air or other gasses through an HVAC duct, often while inhibiting turbulence within the duct or pressure loss within the duct. Embodiments of such dampers may employ a two-part damper arrangement. In many embodiments, flow will travel through the middle of the damper uniformly and with a laminar flow. One or more small, relatively unobtrusive sensor (optionally being wireless) can be included for controlling operation of the damper, the sensor(s) optionally measuring the distance between damper elements, sound, air flow, or the like, with such sensor(s) / damper combination inhibiting inadvertent pressure drop and turbulence in flows through the damper. The damper elements may optionally comprise airfoil cross-sections, with alternative dampers having a resilient helical configuration that can choke down flow by inducing a vortex in the flow, allowing static pressure regain to occur within the duct system.
Need to check novelty before this filing date? Find Prior Art

Description

CROSS-REFERENCES TO RELATED APPLICATIONS

[0001] This application claims the benefit of priority from U.S. Provisional Patent Application No. 60 / 756,037 filed Jan. 3, 2006 (Attorney Docket No. 025920-000500US). This application is related to U.S. patent application Ser. No. 11 / 429,418 filed May 5, 2006 (Attorney Docket No. 025920-000120US), which claims the benefit of U.S. Patent Application No. 60 / 678,695 filed May 6, 2005 (Attorney Docket No. 025920-000100US) and U.S. Patent Application No. 60 / 755,976 filed Jan. 3, 2006 (Attorney Docket No. 025920-00011US); and to U.S. patent application Ser. No. 11 / 180,310 filed Jul. 12, 2005 (Attorney Docket No. 025920-000210US), which is a continuation of U.S. Pat. No. 6,951,324 (Attorney Docket No. 025920-000200US); and to U.S. patent application Ser. No. 10 / 857,211 filed May 24, 2004 (Attorney Docket No. 025920-000300US); and to U.S. patent application Ser. No. 10 / 860,573 filed Jun. 2, 2004 (Attorney Docket No. 025920-000400US). This applicati...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More