Heating means for washing solutions in cleaning machines
AssigneeE.G.O. Elektro-Gerate Blanc u. Fischer
InventorHermann Knauss
Life of this patent
Estimating the term…
Abstract
A cleaning machine, such as a washing machine, is provided in the bottom region of its wet chamber with an outlet and an intake connected thereto immediately above a feed pump, adjacent to which a heating section with an electric heating element located outside the wet region is provided, in such a way that a circulating duct is formed which leads through the wet chamber, the outlet and back to the inlet to the inlet side of the feed pump, in which the washing solution is carried in circuit form under thermosiphonic effect, so that the washing solution is heated and portions of the cleaning agent added to the washing solution and which tend to sink are dissolved.
Claims18
A heating means for heating washing liquids in a washing machine, said heating means comprising:
- a wet chamber for receiving articles to be washed, said wet chamber having a liquid outlet, a liquid inlet and a lowest region;
- a circuit duct connecting said liquid outlet to said liquid inlet, a liquid circuit conduit being defined by said circuit duct, the liquid inlet, the wet chamber and the liquid outlet;
- a heating duct operable to heat the washing liquid when circulating in said liquid circuit conduit;
- and
- a drain pump having a pump inlet connected to said circuit duct, wherein the pump inlet of the drain pump is located directly adjacent to, but outside of, the circuit duct, thereby avoiding a dead leg between the circuit conduit and the pump inlet where sediment tends to occur said liquid inlet and said liquid outlet being located substantially at a same level, said drain pump being located outside said circuit duct.
A heating means for heating washing liquids in a washing machine, said heating means comprising:
- a wet chamber for receiving articles to be washed, said wet chamber having a liquid outlet, a liquid inlet and a lowest region;
- a circuit duct connecting said liquid outlet to said liquid inlet, a liquid circuit conduit being defined by said circuit duct, the liquid inlet, the wet chamber and the liquid outlet;
- a heating duct operable to heat the washing liquid when circulating in said liquid circuit conduit;
- and,
- a drain pump having a pump inlet connected to said circuit duct, said drain pump having a top side, and wherein said pump inlet is provided on the top side of said drain pump, a drain duct portion of said circuit duct leading to said top side.
A heating means for heating washing liquids in a washing machine, said heating means comprising:
- a wet chamber for receiving articles to be washed, said wet chamber having a liquid outlet, a liquid inlet and a lowest region;
- a circuit duct connecting said liquid outlet to said liquid inlet, a liquid circuit conduit being defined by said circuit duct, the liquid inlet, the wet chamber and the liquid outlet;
- a heating duct operable to heat the washing liquid when circulating in said liquid circuit conduit;
- and,
- a drain pump having a pump inlet connected to said circuit duct, wherein the drain pump is arranged as a liquid circulating pump for the liquid circuit conduit, a pump outlet of said drain pump being connectable to the circuit duct by means of a valve.
Dependencies are inferred from the claim text.