PACCAR has been granted a patent for a vehicle design featuring an engine, exhaust pipe, and a fairing with an exhaust opening. The innovative exhaust assembly includes an expansion chamber with a larger second opening and a choke plate that covers at least ten percent of this opening’s area. GlobalData’s report on PACCAR 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 PACCAR, Driving behavior monitoring was a key innovation area identified from patents. PACCAR's grant share as of July 2024 was 76%. Grant share is based on the ratio of number of grants to total number of patents.
Vehicle exhaust assembly with expansion chamber and choke plate
The granted patent US12071880B1 outlines a vehicle design that incorporates a unique exhaust assembly aimed at optimizing exhaust flow and thermal management. The vehicle features an engine connected to an exhaust pipe, which leads to an expansion chamber. This chamber has two openings: a first opening linked to the exhaust pipe and a second opening aligned with an exhaust opening in the vehicle's fairing. Notably, the second opening has a larger cross-sectional area than the first, and a choke plate is included, covering at least ten percent of the second opening's area. The choke plate can have a planar geometry and may be positioned outside the expansion chamber, with options for alignment with the fairing's exhaust opening and coverage by the fairing itself.
Additionally, the exhaust assembly is designed with various features to enhance its functionality. It includes a thermal barrier between the choke plate and the expansion chamber, which aids in managing heat. The assembly may also incorporate a grill plate that spans the second opening, further contributing to the exhaust system's efficiency. The claims detail multiple configurations for the choke plate and the overall assembly, emphasizing the separation of the exhaust assembly from the fairing by a gap, and the potential for a quadrangular shape for the second opening. This innovative design aims to improve vehicle performance by optimizing exhaust flow and managing thermal effects effectively.
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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.
