Woodward. has been granted a patent for a method and apparatus that enhances internal combustion engine operation. The system utilizes pressure signals from a combustion chamber sensor to control fuel pulses during the compression phase, optimizing performance by adjusting fuel delivery based on chamber volume. GlobalData’s report on Woodward 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 Woodward, Photovoltaic drones was a key innovation area identified from patents. Woodward's grant share as of July 2024 was 59%. Grant share is based on the ratio of number of grants to total number of patents.
Fuel pulse control method for internal combustion engines
The patent US12071906B2 describes an innovative apparatus and method for controlling the operation of an internal combustion engine. The engine features a body that moves within a sealed combustion chamber, facilitating both compression and expansion phases. The apparatus includes a processor that receives input from a position sensor and a combustion chamber pressure sensor. During the compression phase, the processor analyzes pressure signals to generate two distinct fuel pulses at different positions of the body. The first pulse is designed to create an air/fuel mixture that approaches auto-ignition, while the second pulse initiates combustion within the chamber. Additionally, the system is capable of controlling combustion parameters such as CA50 or CA10 and managing the NH3/NOx ratio resulting from the combustion process.
Furthermore, the patent outlines an exhaust after-treatment system that processes free ammonia in the exhaust gases to catalyze NOx emissions. The method emphasizes the importance of controlling the amount of free ammonia based on the fuel pulses, ensuring optimal combustion efficiency and reduced emissions. The claims highlight the adaptability of the system to maintain a specific NH3/NOx ratio, ideally around 1, with a threshold of less than 1.2. This technology aims to enhance the performance and environmental compliance of internal combustion engines by improving fuel delivery and combustion control mechanisms.
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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.
