Oshkosh has been granted a patent for a refuse vehicle featuring a variable displacement pump that manages hydraulic fluid flow to a lifting system. The design includes a valve that selectively controls pressure in the hydraulic circuit, enhancing the vehicle’s operational efficiency and actuator positioning. GlobalData’s report on Oshkosh 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 Oshkosh, HEV transmission control systems was a key innovation area identified from patents. Oshkosh's grant share as of June 2024 was 57%. Grant share is based on the ratio of number of grants to total number of patents.
Hydraulic system for refuse vehicle lifting and fluid control
The granted patent US12044254B2 describes a refuse vehicle equipped with a sophisticated hydraulic system designed to enhance the efficiency of refuse collection. Central to this system is a variable displacement pump that draws hydraulic fluid from a reservoir and delivers it through a high-pressure line to a lifting system, which includes at least one actuator. This actuator is responsible for adjusting the position of a carry can device used for refuse handling. A valve positioned downstream of the pump plays a critical role in regulating the flow of hydraulic fluid, transitioning between different positions to either restrict or direct fluid flow based on the hydraulic pressure within the system. This dynamic control allows for precise adjustments to the actuator's position, optimizing the vehicle's operational capabilities.
The patent further details the functionality of the valve, which is biased to a first position and can transition to a second position when the hydraulic pressure exceeds a predetermined threshold. This transition is influenced by the flow rate from the variable displacement pump and is designed to maintain efficient operation of the hydraulic system. Additionally, the vehicle may include sensors to monitor hydraulic pressure and flow rate, with a processor that controls the valve's position based on these readings. The design also accommodates auxiliary devices that can be selectively coupled to the chassis, enhancing the vehicle's versatility. Overall, the patent outlines a comprehensive hydraulic control system that improves the refuse vehicle's performance and adaptability in various operational scenarios.
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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.
