Fluid heater with freeze protection

A heater and fluid technology, applied to fluid heaters, water heaters, lighting and heating equipment, etc., can solve the problems of fluid heater failure, leakage, fluid storage device damage, etc.

Inactive Publication Date: 2006-03-29
VALEO ELECTRICAL SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under subfreezing conditions, this can lead to damage to the fluid storage device due to expansion caused by the phase transition of water to a solid state
The resulting damage could result in leaks, cracks, yielding of the material, or total failure of the fluid heater

Method used

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  • Fluid heater with freeze protection
  • Fluid heater with freeze protection
  • Fluid heater with freeze protection

Examples

Experimental program
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Effect test

Embodiment Construction

[0035] Referring now to FIG. 1 , there is depicted an environment in which a heater apparatus or module 10 constructed in accordance with the teachings of the present invention may advantageously be utilized. Although the following use of the heater module 10 of the present invention is described in connection with a window washing system, it will be appreciated that the heater module can be used in other applications requiring heated fluid, such as for washing any vehicle windows, i.e. windshields, Any washing systems for the rear window, or side windows; and washing systems for mirrors, cameras, lenses, sensor covers, etc.

[0036] As is conventional, a vehicle window 12, such as a windshield, rear window, or window, has one or more fluid delivery devices, such as one located in one location, to dispense or spray a pattern of washer fluid 16 to the window. 12 spray nozzles 14 on the outer surface. Dispensing of washer fluid 16 is typically associated with actuation of a win...

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PUM

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Abstract

A heat source is disposed in the thermally conductive mass housing for imparting heat to the mass. Fluid in a flow path through the mass absorbs heat from the mass. A fluid expansion member is mounted over open ends of the fluid flow path. The fluid expansion member, in one aspect, is formed of a compressible material to compress under the forces of fluid phase change to a solid state and expands back to a nominal shape when the fluid undergoes a reverse phase change to a liquid state. In another aspect, the fluid expansion member is a solid seal member overlaying the open ends of the fluid flow channels. The seal resists expansion under normal fluid operating pressures, but expands into an open interior chamber in a closure fixed to the mass to accommodate a phase change expansion of the fluid.

Description

technical field [0001] The present invention relates generally to fluid heater apparatus, in particular to fluid heater apparatus for providing a heated wash fluid to a washable surface, and more particularly to a vehicle windshield washer system heated washing fluid equipment. Background technique [0002] In a variety of applications it is necessary to rapidly raise the temperature of the fluid to higher service temperatures. For example, it is desirable to be able to provide instant hot water for use in homes, offices and campsites, as well as for industrial processes. [0003] In cleaning applications, hot fluids are known to remove dirt and other debris from surfaces better and faster than cold fluids. One application of the heated fluid is in vehicle washer fluid systems such as windshield washer systems and vehicle wash systems applied to camera lenses, exterior and lamp glass, reflectors, and the like. Vehicles are typically provided with at least one and usually ...

Claims

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Application Information

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IPC IPC(8): F24H1/10B60S1/48F24H1/12
CPCY10T137/6416F24H1/121B60S1/488
Inventor K-H·屈布勒D·G·哈里斯
Owner VALEO ELECTRICAL SYST
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