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Electronically controlled parts called refrigerant valves regulate the vehicle’s refrigerant circuits in the best possible ways. Refrigerant valves have two subsystems: an actuator that is powered by electricity and a hydraulic component.
The expansion valve releases pressure from the liquid refrigerant, allowing it to expand or change state in the evaporator from a liquid to a vapour. The liquid refrigerant entering the expansion valve at high pressure is fairly warm.
The liquid line’s connection to the expansion valve can be felt to confirm this.Electronic expansion valves are used in refrigeration systems to precisely regulate the flow of refrigerant into the evaporator.
The Global Automotive Electric refrigerant valves market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
DunAn Microstaq expands its Modular Silicon Expansion Valve (MSEV) product family for cooling capacities from sub 1 to 50 tonnes in R-410A and comparable low GWP DunAn Microstaq, Inc.
(DMQ), a MEMS technology company that innovates flow control solutions primarily for the HVAC, refrigeration, and automotive industries, expands its Electronic Expansion Valve product family from sub 1 tonne to 50 tonnes cooling capacities with autonomous sensing and refrigerant control technology.
Modular Silicon Expansion Valve (1 to 8 tonnes), High-Capacity Modular Silicon Expansion Valve (10 to 25 tonnes), and Very High-Capacity Modular Silicon Expansion Valve are the three capacity categories that make up the product family (26 to 50 tons). The valves are the refrigerant expansion valves that react.
They are ideal for dynamic variations in thermal load in HVAC/R systems because of their experience in the industry. The inbuilt ultra-fast MEMS based piloting silKflo® Silicon Servo Valve produces the quick response (SSV). A refrigeration system requiring a cooling capacity of between 1000 BTU/h and 12000 BTU/h can use the 1-ton MSEV type.
The palm-sized Universal SuperHeat Controller from DMQ operates the valves on its own (USHC). Single-stage, dual-stage, and variable speed compressors with embedded intelligent control algorithms can all use the control algorithm because it is built and qualified to do so.
The USHC is a smart controller made up of a Pulse-Width-Modulation (PWM) driver that can be read over an RS485 communication BUS using the MODBUS RTU protocol, an internal pressure sensor, and an external temperature sensor.
It provides HVAC/R producers with a plug-and-play solution because it is preprogrammed with many A2 safety class refrigerants in addition to the most popular ASHRAE A1 refrigerants. Because of this capabilities, producers may quickly qualify and release their products to the market and save down on engineering time.
A different application for the USHC is as a digital pressure and temperature sensor (one integrated pressure sensor and two external temperature sensors) with configurable PWM duty cycle and frequency for 12V/24V third-party actuators or LED lighting controllers (max current 1.5A).
