Mahle has been granted a patent for an electric compressor featuring a scroll-type compression device, refrigerant inlet and outlet ports, and a unique swing-link mechanism. The compressor efficiently compresses refrigerant for various applications. GlobalData’s report on Mahle gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Mahle, Battery management systems was a key innovation area identified from patents. Mahle's grant share as of January 2024 was 39%. Grant share is based on the ratio of number of grants to total number of patents.

Electric scroll-type compressor for refrigerant compression

Source: United States Patent and Trademark Office (USPTO). Credit: Mahle GmbH

A recently granted patent (Publication Number: US11879464B1) discloses a scroll-type electric compressor designed to compress refrigerant efficiently. The compressor comprises a housing with intake and discharge volumes, a drive shaft with a concentric protrusion and drive pin aperture, a motor for rotating the drive shaft, and a compression device with fixed and orbiting scrolls forming compression chambers. A swing-link mechanism and ball bearing arrangement cause the orbiting scroll to rotate eccentrically about the center axis, enhancing compression efficiency. The design also includes features like a motor section, oil lubrication system, and an inverter section for converting electrical power, all integrated into the housing for compactness and functionality.

Furthermore, the patent details additional features such as the integration of the concentric protrusion with the drive shaft, the use of guidance pins to limit articulation of the orbiting scroll, and the inclusion of ball bearings for smooth operation. The compressor also incorporates drive shaft supporting members, oil separator for separating oil and refrigerant, and an inverter section with an inverter circuit. The design aims to provide a reliable and efficient scroll-type electric compressor for various refrigeration applications, with a focus on compactness, functionality, and ease of operation.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.