A thermostatic bypass valve regulates the fluid temperature and also acts as the pressure relief valve. These valves are used to control the fluid temperatures in engines, compressors, radiators and hydraulic power packs. These study aims to design a reliable valve actuating mechanism for thermostatic bypass valve used in engine oil cooling system and hydraulic systems (Hydraulic Oil 68 Widely used in hydraulic power packs of CNC machines)). Pressure, Temperature rating, Body wall thickness was considered as per ASME B16.34-2020 CL150 and CL300. The mechanism of the valve was designed to overcome the cold flow starvation, overheating of the oil, which results in reduced efficiency and to reduce the pressure spikes in the flow circuit. As a result of study the temperature sensitive fluid flow control valve was designed with a bypass passage defined in the valve boy. The bypass passage was connected to heated oil source, oil cooler inlet and outlet and the oil return line. Novelty and Area of Impact – 1. A temperature sensitive fluid flow control valve comprising of said Body with Seat housing at closing end provided with O-Ring, Thermostatic wax actuator including a valve element which extends to support the closing member Plug and the pressure relief functional actuated with compression spring (1). 2. A temperature sensitive fluid control valve where the thermostatic wax actuator and seat housing forms a resilient seat with bonded rubber.
Bypass Passage, Plug, Spring, Thermostatic Bypass Valve, Valve Element, Wax Actuator
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