DE1989622U - VALVE DISC FOR THERMOSTATIC COOLING WATER CONTROL VALVES. - Google Patents

Description

P.A. 289 226 * 5/18/68

Gustav voter W 36 884/46 e Gbrn

Esslingen / leekar

¹ ei '' - Afor

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Nlartinstrasse 22 - Tel. 358282

Valve plate for thermostatic. ©. Cooling water control valves

It is. _{"Known to provide valve plates for} thermostatic cooling water control valves with palms of the hands, which have on their circumference egg nse cuts with veryag outwardly extending flanks. This ensures that when the valve plate is opened, initially only smaller opening transverse sections are released.

The object of the invention now relates to a valve plate for thermostatic ^ .Kühlwasser-Regelventile, as they are used in particular for the cooling water circulation of .Kraftfahrzeuge; the valve disk has a slider-like sleeve with incisions distributed over its circumference, the edges of which extend very much outwards. If the cooling water temperature rises, the valve opening through the valve disk is opened more or less wide by a thermal expansion element, with a return spring closing the valve again when the temperature drops. 7th

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With such a valve plate !! has shown, however, that with successive rapid temperature changes of the coolant circulation and / iiEbθsondere at high flow velocities generated by high differential pressures Despite the incisions, the valve disc rattles and the valve sooner or later becomes unusable.

In order to avoid this disadvantageous part, according to the invention, at least one of the flanks of each incision in the attachment sleeve of the valve disk is provided with a smaller slope in relation to the depth of the incision. The planks are preferably arcuate or curved, and the slope of the inclined planks can become too small after the outer hand of the attachment sleeve. The planks can also taper off asymptotically. It is also useful to line up the incisions distributed on the circumference of the attachment sleeve in a sawtooth-like manner. _: ; ■ _'.-::

Due to the aforementioned formation of the incisions it is achieved that when the valve disk is lifted from the valve seat initially only relatively small opening; cross-sections automatically increase rapidly the further the valve opens. Due to the special non-linear ^ Change in cross-section of the valve opening and the resulting conditional reduction in pressure differences will also a chattering or swinging of the valve disk is prevented.

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The coolant circulation and thus the cooling is neither hindered nor slowed down *

Buren the invention is thus achieved the object the flutter of such a control valve with the simplest means and the simplest. Way to reliably prevent without the need for "special additional or costly facilities or measures for this purpose are.

The drawing is an exemplary embodiment of the subject matter of the invention sehematiseh in section ■■; - shown » . ; . .

.: The control valve of the cooling water regulator "consists of the valve plate 5, the opening of which is closed by the valve disk β with a sehieberähnlieher Jinsatzhülse 8 _.: The valve disk 6 is firmly connected to the sensor 1, which is filled with; The pin 2 protrudes into it. The latter is attached to the retaining bracket 4, while the cooling element 1 is guided in the filling bracket 3. ;

When the temperature increases, the sensing element 1 moves downwards, whereby the return spring 7 is tensioned will. The Verntilteller β is taken along so that the valve opening becomes free. With a temperature decrease brings the return spring 7 into the valve disk β again the vision was: back.

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TJm now a reliable one when compensating for the temperature play To obtain opening and closing, the neck sleeve 8 is provided with incisions 9 on its circumference. These incisions are evenly distributed over the circumference, the number and their size depend on the type the coolant control and the size of the valve opening. So are z. B. two Ms seehs and more incisions are provided.

The planks 10 of the incisions 9 are in the embodiment sawtooth-like design. With an easy one Raising the tilt plate 6 will only be small at first Openings between the valve plate 5 and the neck sleeve 8 free. The greater the movements of the heat sink 1 the faster the valve opening will be free *

Instead of the straight rising planks 10 of the These incisions 9 can also be provided with other oblique planks on one or both sides. So are she z. B. arcuate © the curved shape. The slope can become too smaller after the outer edge of the attachment sleeve 8, whereby the planks can run out asymptotically. The structural design of the incisions and their ·? ' By the way, KLanken is based on what is at hand Conditions or rule conditions. Vibrations or flutter movements when opening and closing the control valve no longer occur with such a design.

Claims (2)

RA. 219 226 * 5/18/68 Protection requirements 1, valve plate for thermostatic ^ cooling water control valves, especially for the cooling circuit of motor vehicles, which has a slide-like neck sleeve on its circumference distributed incisions with oblique has outwardly extending hooks, characterized in that that at least one of the planks (TO) of each incision (9) with in relation to Siefe of the latter is provided with a slight slope and is preferably curved or curved # 2. Valve disk according to claim 1, characterized in that that the slope of the sloping planks (10) too smaller after the outer edge of the neck sleeve (8) and the planks (1O) z. B. run out asymptotically " 3 * valve disk according to claim 1, characterized in that the incisions (9) of the attachment sleeve (8) are lined up like a sawtooth «