High-pressure cleaning appliance
AssigneeAlfred Kärcher GmbH & Co. KG
InventorsBetram Groger, Helmut Komp, Rudi Schwaderer
Life of this patent
Estimating the term…
Abstract
In a high-pressure cleaning appliance comprising a high-pressure pump driven by an internal combustion engine, a bypass line leading from the pressure line of the pump to the intake side of the pump and opening when the pressure line is closed, and a pressure sensor in the pressure line, in order to adapt the power of the internal combustion engine to the prevailing operating conditions, it is proposed that the pressure sensor reduce the speed of the internal combustion engine immediately the pressure in the pressure line drops below a certain value.
Claims7
A high-pressure cleaning appliance comprising a high-pressure pump driven by an internal combustion engine, a bypass line leading from a pressure line of said pump to an intake side of said pump and opening when said pressure line is closed, and a pressure sensor in said pressure line, wherein said pressure sensor reduces the speed of said internal combustion engine immediately when the pressure in said pressure line drops below a certain value, and wherein a flow monitor is arranged in said pressure line to open said bypass line when there is an absence of flow.
Dependencies are inferred from the claim text.