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Liquid heating pump for conveying and heating liquid in a household appliance which uses water

A fluid and heat pump technology, applied to the components of pumping devices for elastic fluids, household cleaning devices, pumps, etc., can solve problems such as not meeting the requirements of fluid heat pumps, reduce fluid volume, improve extrusion, reduce Effect of Dead Space Volume

Inactive Publication Date: 2019-01-04
BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This means that the special design of the pump does not meet the requirements for fluid heat pumps configured differently in this case.

Method used

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  • Liquid heating pump for conveying and heating liquid in a household appliance which uses water
  • Liquid heating pump for conveying and heating liquid in a household appliance which uses water
  • Liquid heating pump for conveying and heating liquid in a household appliance which uses water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0076] The structural principle according to the invention of a fluid heat pump, which is installed in a domestic dishwasher, is explained below. The fluid heat pump can optionally also be arranged in other air-conducting domestic appliances, such as washing machines, as its washing unit or as a component of the fluid circuit.

[0077] figure 1 A schematic view of a domestic dishwasher 1 viewed from one side is shown. The domestic dishwasher has a rinsing container 2 for receiving rinsing items to be cleaned with a fluid and subsequently dried, such as dishes, pans, cutlery sets, glasses, kitchen utensils, etc. Preferably, the rinsing container 2 has a substantially rectangular plan view (viewed from above) with a front side V facing the user in the operating state. There are filling openings accessible from the front. It can be closed by the front door 3 . door 3 in figure 1 is shown in a closed position and is pivotable, for example, about a lower horizontal axis 3a. O...

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PUM

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Abstract

The invention relates to a liquid heating pump (12) comprising an impeller chamber (40) having an impeller (17), which can be driven in rotation, and having a diffuser and / or pressure chamber (50) arranged axially downstream in the flow direction and having a stationary diffuser (23). A heating device (26) is associated with the diffuser and / or pressure chamber (50). The diffuser has a main body,in particular in the shape of a circular cylinder, having an axial outer casing (232), the diameter (503) of which is selected to be at least equal to 80%, in particular between 80% and 90%, preferably approximately equal to 86%, of the external diameter (505) of the diffuser and / or pressure chamber (50).

Description

Background technique [0001] In particular in domestic dishwashers, so-called fluid heat pumps are often provided separately, which include a circulation pump and, in addition, a heating device in combination. Thus, on the one hand the rinsing fluid can be pumped via one or more delivery pipes to one or more spraying devices in the interior of the rinsing container of a domestic dishwasher by means of a circulation pump, and on the other hand when the The rinsing fluid to be rinsed, which is conveyed by means of the circulation pump, is heated by the heating device to the required heating temperature when required in the corresponding sub-rinsing process of the performed rinsing process (for example, the cleaning process or the rinsing process). [0002] Such a fluid heat pump is given, for example, in WO 2008 / 125488 A2. The fluid heat pumps provided there are designed according to the functional principle of rotary pumps or radial pumps. Viewed along the flow path of the del...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/44A47L15/08D06F39/08F04D29/58A47L15/42D06F33/47
CPCA47L15/4225D06F39/085F04D29/448F04D29/586A47L15/4285D06F39/04D06F33/47
Inventor 汉斯-霍尔格·佩尔特曼斯特凡·卢茨伊戈尔·霍夫曼马库斯·韦克
Owner BSH BOSCH & SIEMENS HAUSGERAETE GMBH