Title:
GASEOUS FUEL BURNER
Document Type and Number:
WIPO Patent Application WO/2005/108865
Kind Code:
A1
Abstract:
A blower forces air through an ejector, such as a venturi, and the air flow produces a suction that draws fuel inlet to produce a fuel-air mixture. The amount of fuel drawn from the fuel inlet is a function of the air flow such that a substantially constant fuel-air ratio is obtained over a range of air flow rates and temperatures without the need for a separate high-pressure fuel pump. Air from the blower may be pre-heated prior to entering the ejector and may be conditioned, for example, by a swirler, to produce a tangential air flow. The combusted fuel-air mixture may be provided to a thermal load, such as an external combustion engine. Blower speed may be controlled manually or automatically and fuel flow to the ejector. The burner can be configured to operate with multiple fuel types, for examples, using a fuel selector with fixed or variable restrictors.
Inventors:
KORNBLUTH KURT L (US)
NORRIS MICHAEL G (US)
NORRIS MICHAEL G (US)
Application Number:
PCT/US2005/015721
Publication Date:
November 17, 2005
Filing Date:
May 05, 2005
Export Citation:
Assignee:
NEW POWER CONCEPTS LLC (US)
KORNBLUTH KURT L (US)
NORRIS MICHAEL G (US)
KORNBLUTH KURT L (US)
NORRIS MICHAEL G (US)
International Classes:
F23C7/00; F23D14/04; F23D14/34; F23D14/60; F23D14/64; F23D14/66; F23D14/72; F23D17/00; F23D99/00; F23L15/02; F23L15/04; F23N1/00; F23N3/08; F23N5/00; (IPC1-7): F23D14/64; F23D14/34; F23D14/66; F23C7/00; F23L15/02; F23L15/04; F23D14/72; F23N5/00; F23D17/00; F23N3/08
Foreign References:
| DE3721143A1 | 1989-01-05 | |||
| US4358268A | 1982-11-09 | |||
| EP1342951A2 | 2003-09-10 | |||
| FR2794521A1 | 2000-12-08 | |||
| DE3924747A1 | 1990-06-21 | |||
| US6039261A | 2000-03-21 |
Attorney, Agent or Firm:
Sunstein, Bruce D. (LLP 125 Summer Stree, Boston MA, US)
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