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:
Jul. 21, 1987
Filed:
May. 08, 1985
Douglas A Caley, King County, WA (US);
Paccar Inc, Bellevue, WA (US);
Abstract
An air drying system for pneumatic circuits to provide compressed air at working pressure having a dew point which is below the temperature of the circuits. In one embodiment, the system has an air intake for accepting ambient air having an initial water vapor content, a compressor for over-compressing or highly compressing the air to a pressure which is greater than that necessary for operation of the pneumatic circuit, a heat exchanger which cools the highly compressed air below the dew point thereof to cause some of the water vapor to precipitate, and a regulator to expand the air, resulting in substantially unsaturated compressed air at a relatively moderate working pressure. In the preferred embodiment, the system is on a motor vehicle and the compressed air is cooled by the large volume of combustion air to the engine.