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:
Oct. 28, 2003
Filed:
Aug. 18, 2000
Foboha GmbH, Haslach, DE;
Abstract
In a method for the internal cooling of a rotating object ( ), liquid gas from at least one inlet channel ( ) in a fixed object ( ) is pressed into a ring-shaped groove ( ) located between the fixed object ( ) and the rotating object ( ). From the ring-shaped groove ( ) the liquid gas is pressed into at least one channel ( ) in the rotating object ( ) and brought to a part to be cooled ( ). The liquid gas, upon contact with the part, evaporates and expands while absorbing heat, thereby cooling the part. The area surrounding the part to be cooled ( ) may be designed as an expansion chamber ( ). The method can be used to cool molded parts in injection molding machines with rotating molds ( ), thereby achieving shorter cycle times.