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本发明涉及二氧化碳液化技术领域，具体涉及一种降低二氧化碳液化冷耗的方法和装置。该方法包括：将二氧化碳压缩气依次进行n级换热冷却和二氧化碳液化，得到液化二氧化碳，并分离出不凝气；其中，所述不凝气返回与所述二氧化碳压缩气逆流接触，进行所述n级换热冷却；所述n级换热冷却的过程包括：将所述不凝气进行逐级降压，并进行逐级分流；其中，n为不小于3的正整数。该方法能够高效的回收不凝气的冷量，从而显著降低二氧化碳液化过程的冷耗，提高二氧化碳液化工艺的经济性。

The present invention discloses an active protection system for a ground combat vehicle and a method of operating the same. The present invention is configured to possess various countermeasures to provide a hemispherical protection range, thereby protecting the ground combat vehicle and its crew by rapidly and accurately neutralizing various threats approaching the ground combat vehicle, such as anti-tank rockets, anti-tank missiles, anti-tank high-explosive rounds, kinetic energy rounds, as well as suicide drones, explosive-dropping drones, and swarm drones.

A food management device (MA) in accordance with the present disclosure includes: a location identifying section (14) that identifies a location of a food item which is shown in a first image showing an inside of a storage compartment: an identifier assignment section (21) that assigns an identifier to each food item; a type determination section (15) that determines, for each food item, a type of a food item; and a storage section (30) that stores, as stock information, each food item in association with the identifier, the location, and the type.

The present invention relates to an electric compressor comprising a housing; a fixed scroll mounted to rotate and be fixed inside the housing; and a rotating scroll disposed opposite the fixed scroll so as to form a compression chamber capable of compressing refrigerant gas in the space between the fixed scroll and the rotating scroll, wherein a back pressure chamber is formed in the space contacting the rear surface of the fixed scroll which is opposite to the facing surface with respect to the rotating scroll so that back pressure can be generated.

The present invention enables long-term storage of liquid hydrogen by suppressing its evaporation. Specifically, ① unlike conventional technology that uses a single large-capacity cryogenic refrigerator, two or more small-capacity cryogenic refrigerators are installed, and continuous on/off control for hydrogen liquefaction is performed using only one refrigerator, while the remaining refrigerator is used alternately when necessary. This extends the on/off cycle, thereby preventing mechanical stress on the cryogenic refrigerator caused by frequent on/off operations and allowing for balanced utilization of the two refrigerators, which in turn increases the mechanical lifespan of the cryogenic refrigerator. Furthermore, ② by controlling the off operation of the cryogenic refrigerator through the measurement of the internal pressure of the liquid hydrogen storage tank, and controlling the on operation through the measurement of the internal pressure of the heat pipe heat exchanger, the control stability and sensitivity of the evaporation-recondensation process can be increased. A controlled hydrogen liquefaction device is provided.

The invention relates to a braking system (10) comprising a first brake pad (11) and a second brake pad (12), each of the pads (11, 12) comprising a brake lining (2) able to come into contact with a rotor (100), the brake linings (2) of the pads (11, 12) comprising, together, first and second collecting grooves (4) for collecting braking particles, each collecting groove (4) comprising an air inlet (43) and an air outlet (44), said braking system (10) comprising a connecting element (5) configured to fluidically connect the air outlet (44) of the first groove (41) to the air inlet (43) of the second groove (42), the air outlet (44) of the second groove (42) being fluidically connected to a vacuum source (9).

The present invention discloses a connecting rod for an internal combustion engine comprising a lubrication system comprising at least one first lubrication nozzle and at least one second lubrication nozzle. The first lubrication nozzle is located near a first end of the connecting rod and the second lubrication nozzle is located near a second end of the connecting rod. The first end of the connecting rod is configured to connect to a piston and the second end of the connecting rod is configured to connect to a crankshaft. The first lubrication nozzle is configured to supply lubricating oil to the piston and the second lubrication nozzle is configured to receive lubricating oil from the crankshaft. The present invention also discloses an internal combustion engine comprising the connecting rod for an internal combustion engine, as defined by the present invention. Finally, the present invention discloses a vehicle comprising the connecting rod for an internal combustion engine, and/or the internal combustion engine as defined by the present invention.

The invention relates to a building heating system, in particular for heating water, such as tap water and/or utility water, of a building water system. The invention also relates to a kit of part to realize such a building heating system. The invention further relates to a method for controlling the building heating system according to the invention.

The invention is a device or tool designed to fit on a supply handle for turning the supply handle. It is especially useful to use the device at a distance or in a confined space and reduces risk of damage to the supply handle.

本申请公开了一种翻转式清洗装置及爬壁机器人，翻转式清洗装置包括基座、翻转机构和清洗部，基座上设置有第一触发开关和第二触发开关，翻转机构的驱动单元驱动翻转轴沿第一方向转动能够触发第一触发开关以关闭驱动单元，驱动单元驱动翻转轴沿第二方向转动能够触发第二触发开关以关闭驱动单元。本实施例中，驱动单元沿第一方向驱动翻转轴以使连接臂和清洗部靠近锅炉管路时，连接臂能够在清洗部运动到位后触发第一触发开关以关闭驱动单元避免驱动单元损坏，如此设置可以实现爬壁机器人翻转清洗部避让斜坡，待爬壁机器人运行至斜坡上之后再将清洗部精准复位至初始位置以对斜坡表面进行清洗。