Method for controlling high-pressure cleaning appliance and high-pressure cleaning appliance particularly for carrying out the method
A high-pressure cleaning and equipment technology, applied in cleaning methods and appliances, cleaning methods using liquids, pump control, etc., can solve problems such as damage, high-pressure pump wear, overheating, etc., and achieve the effect of a simple method
Active Publication Date: 2020-09-22
ALFRED KARCHER GMBH & CO KG
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Dry running of the high-pressure pump can lead to overheating and lead to increased wear and even damage to the high-pressure pump
Especially with high-pressure pumps at least partially made of plastic material there is a risk of damage in the event of dry running
Method used
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Embodiment Construction
[0049] exist figure 1 A preferred embodiment of a high-pressure cleaning device according to the invention is schematically shown in and assigned the reference numeral 10 overall. The high-pressure cleaning device 10 has a housing 12 in which a motor-pump unit 14 with an electric motor 16 and a high-pressure pump 20 driven by the electric motor 16 via a transmission 18 are arranged. The electric motor 16 is operated at a constant rotational speed of at least 15,000 revolutions per minute, in particular 15,000 to 18,000 revolutions per minute, for example 16,500 revolutions per minute. The high-pressure pump 20 has a pump inlet 22 and a pump outlet 24 . The high-pressure pump 20 is designed as a reciprocating piston pump and has a plurality of pistons 21, 23, 25, which are driven by the electric motor 16 via a transmission 18 for reciprocating movement along their respective longitudinal axes, and here In the customary manner, each sinks into a pump chamber whose volume is cy...
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The invention relates to a method for controlling a high-pressure cleaning appliance (10) comprising an electric motor (16), a high-pressure pump (20) driven by the electric motor (16), and a controldevice (30). The aim of the invention is to easily counteract the risk of dry running. To this end, the control device (30) determines the actual value of the electrical power consumption of the electric motor (16) and shuts down the electric motor (16) if, after expiration of a pre-defined starting interval following the start-up of the electric motor (16), the actual value is lower than a pre-defined minimum value for the electrical power consumption of the electric motor (16). The invention also relates to a high-pressure cleaning appliance (10) particularly for carrying out the method.
Description
technical field [0001] The invention relates to a method for controlling a high-pressure cleaning device having an electric motor, a high-pressure pump driven by the electric motor, and a control device. [0002] Furthermore, the invention relates to a high-pressure cleaning device having an electric motor, a high-pressure pump driven by the electric motor and a control device, in particular for carrying out the above-mentioned method. Background technique [0003] With the aid of a high-pressure cleaning device, a cleaning fluid, preferably water, can be pressurized and directed at the surface to be cleaned. The cleaning fluid can be supplied to the high-pressure pump of the high-pressure cleaning device via a fluid supply line, for example a suction hose. The cleaning liquid can be pressurized by a high-pressure pump and then output via a liquid output line (eg a pressure hose). In order to control the electric motor that drives the high-pressure pump, the high-pressure ...
Claims
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IPC IPC(8): B08B3/02F04D15/02F04B49/06
CPCB08B3/026F04B17/03F04B17/06F04B49/02F04B49/065B08B2203/0223B08B2203/027B08B2203/0282F04B2203/0201
Inventor 凯·特劳特维恩罗尔夫·基尔希德费约亨·魏斯
Owner ALFRED KARCHER GMBH & CO KG