Daimler Truck has been granted a patent for an exhaust purification device that improves the efficiency of purifying engine exhaust gas in vehicles. The device features a unique flattened shape in the connecting ends of the pipes, enhancing contact with the inner surface of the casing for better performance. GlobalData’s report on Daimler Truck 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 Daimler Truck, was a key innovation area identified from patents. Daimler Truck's grant share as of February 2024 was 36%. Grant share is based on the ratio of number of grants to total number of patents.

Exhaust purification device with flattened pipe ends

Source: United States Patent and Trademark Office (USPTO). Credit: Daimler Truck Holding AG

A recently granted patent (Publication Number: US11859529B2) discloses an exhaust purification device designed for vehicles. The device comprises a casing that houses a purifier to clean the exhaust gas from the vehicle's engine. The casing features an inlet opening at one end for the exhaust gas to enter and an outlet opening at the other end for the purified gas to exit. The unique design includes pipes connected to the openings, with flattened connecting ends that extend laterally from the casing and have a shorter dimension in the longitudinal direction of the casing. These flattened ends make contact with the inner surface of the casing, ensuring efficient flow of exhaust gas through the purifier.

Furthermore, the patent details variations in the design, such as the inclusion of outer pipe portions connected to the flattened ends, with equal cross-sectional areas. The connecting ends can be shaped as ellipses, rectangles with rounded corners, or track shapes, enhancing the overall efficiency of the exhaust purification device. Additionally, the casing can accommodate a catalyst for selective catalytic reduction, further improving the purification process. The patent also specifies the orientation of the casing on the vehicle, aligning the longitudinal direction with the vehicle's width direction for optimal performance. Overall, the exhaust purification device described in the patent offers a novel and efficient solution for cleaning exhaust gas from vehicle engines, with a focus on maximizing purification effectiveness and space utilization.

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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.