AB Volvo has been granted a patent for a differential housing designed for a vehicle’s differential unit. The housing includes a valve that regulates the flow of oil, allowing passage towards the inner space and preventing leakage outside unless a specific force is applied. GlobalData’s report on AB Volvo 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 AB Volvo, Direct injection type engines was a key innovation area identified from patents. AB Volvo's grant share as of January 2024 was 48%. Grant share is based on the ratio of number of grants to total number of patents.
Differential housing with valve for oil passage control
A recently granted patent (Publication Number: US11885404B2) discloses a differential housing designed for a vehicle's differential unit. The housing features a peripheral wall with a tubular shape and includes one or more holes with valves allowing the passage of oil towards the inner space and preventing oil from escaping unless a specific force is applied. The patent also describes variations in the number and arrangement of holes, as well as the use of different types of valves such as check valves or spring-loaded reed valves.
Furthermore, the patent details an assembly for a differential unit, incorporating the described housing and a differential with differential side gears and pinions. The differential unit, housed within a differential carrier housing, includes a crown wheel connected to an input shaft for rotation. The differential is positioned partly inside the crown wheel, with the housing comprising two shells secured to the crown wheel and drive shafts. Additionally, a driven wheel system for a vehicle is outlined, featuring the differential unit, drive shafts connected to wheels, and sealing gaskets for improved functionality. The patent also extends to a vehicle equipped with this driven wheel system, emphasizing the practical application of the patented differential housing technology in automotive settings.
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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.
