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:
Mar. 20, 2018
Filed:
Mar. 17, 2009
Aurélie Bellenfant, Roézé sur Sarthe, FR;
Jimmy Lemee, Saint Jean d'Asse, FR;
Lionel Renault, Oizé, FR;
Frédéric Bernard, Ferce sur Sarthe, FR;
Aurélie Bellenfant, Roézé sur Sarthe, FR;
Jimmy Lemee, Saint Jean d'Asse, FR;
Lionel Renault, Oizé, FR;
Frédéric Bernard, Ferce sur Sarthe, FR;
VALEO SYSTEMES THERMIQUES, Le Mesnil Saint Denis, FR;
Abstract
The invention relates to a heat-exchanger for an air-conditioning circuit that includes a first pipe () defining a path for a flow of fluid, the first pipe being spirally wound about a so-called exchanger axis (A). According to the invention, the heat exchanger () further includes at least one second pipe () defining a path for a flow of a second fluid, said second pipe being provided against a surface of the first pipe () and spirally wound together with said first pipe () about said axis (A). The invention can be used in air-conditioning circuits operating with a super-critical coolant, in particular carbon dioxide (CO2).