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:
Aug. 25, 2026
Filed:
Mar. 28, 2024
Mahle International Gmbh, Stuttgart, DE;
Manuel Zahlecker, Neuhausen, DE;
Jeffrey Van Delden, Wendlingen, DE;
Mahle International GmbH, , DE;
Abstract
An electromotive expansion valve for a refrigeration circuit for expanding a two-phase refrigerant includes a hydraulic flange for integrating the expansion valve into the refrigeration circuit, a housing fastened to the hydraulic flange, a valve body unit for controlling a flow opening of the hydraulic flange, and an electric motor for axially adjusting the valve body unit. A rotor of the motor includes a rotor sleeve with an internal threading. The valve body unit includes a drive rod extending axially into the rotor sleeve. The drive rod includes an external threading engaging the internal threading of the rotor sleeve. The drive rod extends axially through a bearing bushing. A torque-proof axial guide is disposed between the bearing bushing and the drive rod such that the valve body unit is torque-proof while the rotor is turning and adjusts itself axially.