The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 2008
Filed:
Apr. 20, 2005
Chris C. Begley, Ortonville, MI (US);
Chris C. Begley, Ortonville, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A flow-through carbon adsorption device is provided with leads for imposing an electric current and with a temperature sensor at the desorption flow exit. The temperature sensor and electric current source are controlled by a controller. In adsorption mode, no current flows through the device. Hydrocarbons are adsorbed in the device before reaching atmosphere. In desorption mode, the temperature sensor and electric source are activated by the controller. Electric energy is converted to heat energy within the device. Air is drawn in reverse flow through the device. Because desorption is endothermic, the carbon bed becomes progressively cooler during desorption. When desorption is complete, the temperature of the device begins to rise and the controller shuts down the temperature probe and the electric heating system. Thus, full desorption of the device is assured without significant waste of electricity or compromise of subsequent adsorptive capacity of the device after desorption is complete.