The first artificial refrigeration compressor was invented by Harrison in 1851.
In 1873, German chemist and engineer Carl von Linde invented a refrigerator using ammonia as the refrigerant. Linde used a small steam engine to drive the compression system, causing ammonia to be repeatedly compressed and evaporated to produce refrigeration. Later, he improved industrial refrigerators. To miniaturize it, the world's first artificially refrigerated household refrigerator was created in 1879.
The world's first refrigerator with an electric motor driving a compressor was invented in 1923 by Swedish engineers Baltzar von Platen and Carl Munters. The world's first refrigerator. Who would have thought that the refrigerator that brought so much change to our lives was just the homework of two young students.
Later they sold the patent to a company in the United States and produced the first batch of household refrigerators in 1925.
The previous refrigerator handle had a bolt-type design. When the door bolt is locked, it can tightly press the rubber strip gasket, allowing the cold air to be completely sealed in the refrigerator, while the warm air It was impossible to get in. Later, the U.S. Congress passed the Refrigerator Safety Act in 1956, and all refrigerators were equipped with switch handles inside. But not long after, some smart people thought of replacing the refrigerator door latch with a magnet seal, and the modern version of the refrigerator appeared.
Extended information:
In the mid-17th century, the word "refrigerator" entered the American language. Before that, refrigerators only affected the diet of ordinary American citizens. As the city developed, the sale of ice also gradually developed.
It was gradually used by hotels, hotels, hospitals, and some discerning city merchants to preserve meat, fish, and butter. After the Civil War (1861-1865), ice was used to refrigerate freight cars and also entered civilian use. ?
By 1880, half of the refrigerators sold in New York, Philadelphia, and Baltimore, and one-third of the refrigerators sold in Boston and Chicago, began to enter homes because of a new household appliance— -The refrigerator, the predecessor of the modern refrigerator, was invented. Similar products include freezers.
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