Patent ID: 8671676
Filing Date: 2014-03-18
Classification: F02G

Abstract:
1. A heat regenerator hot gas engine, comprising: a working gas; a heat regenerator, wherein the heat regenerator comprises a heat regenerator first end, and a heat regenerator second end; a cooler fluid seal connected to the heat regenerator first end, wherein the cooler comprises a cooler inlet and a cooler outlet; a heat sink positioned outside the cooler, wherein the heat sink is configured to receive heat coming from the cooler; a pressure variation means, and an external heat source being fluid seal connected to the heat regenerator second end; wherein a portion of said working gas occupying the inside of the cooler and a portion of said working gas occupying the inside of the heat regenerator are alternately expanded and compressed; wherein a portion of the portion of said working gas occupying the inside of the cooler exiting the cooler through the cooler outlet, and a portion of the portion of said working gas occupying the inside of the heat regenerator exiting the heat regenerator through the heat regenerator second end, while the portion of said working gas occupying the inside of the cooler and the portion of said working gas occupying the inside of the heat regenerator expand; wherein the portion of said working gas in the heat regenerator is added heat by the heat regenerator, and the portion of said working gas exiting the heat regenerator through the heat regenerator second end is added heat with/by said external heat source; wherein the portion of said working gas in the cooler and the portion of said working gas in the heat regenerator expand to produce usable work; wherein the pressure variation means is configured to interact with the portion of said working gas exiting the heat regenerator second end, while the portion of said working gas in the cooler and the portion of said working gas in the heat regenerator expand, thereby the pressure variation means receives readily usable work produced during the expansion of the portion of said working gas in the cooler and the portion of said working gas in the heat regenerator; wherein the pressure variation means is further configured to utilize a portion of the readily usable work, to force the working gas flowing out of the heat regenerator second end during the expansion, to flow back into the heat regenerator through the heat regenerator second end, thereby effecting the compression of the portion of said working gas in the heat regenerator and the portion of said working gas in the cooler; wherein the portion of said working gas exiting the cooler through the cooler outlet during the expansion, flows back into the cooler through the cooler inlet, while the portion of said working gas in the heat regenerator and the portion of said working gas in the cooler are compressed, and wherein the heat regenerator absorbs heat from the compressing working gas in the heat regenerator, and the heat sink absorbs heat coming from the cooler during the compression of the portion of said working gas in the heat regenerator and the portion of said working gas in the cooler.