Switching unit which is composed of a set of switching valves and is suitable for making a first and second medium flow through one of two plate coolers as desired
AssigneeIndufil B.V.
InventorsPeter Pas, Fred Greter
Life of this patent
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Abstract
A switching unit which is suitable for making a first and a second medium—for example oil and cooling water—flow through one of the two plate coolers as desired comprises four switching valves. The valve bodies of the four valves (1-4) are connected to one another by an actuating mechanism (19, 20, 21, 22), in such a manner that when one of the four valves is switched the other three valves are also switched. This definitively prevents incorrect switching operations.
Claims4
Switching unit which is composed of a set of switching valves and is suitable for making a first and a second medium flow through one of two plate coolers as desired, characterized in that the switching unit has four switching valves, namely:
- a first three-way switching valve (1) allowing the first medium to be supplied to the one plate cooler (7) or the other plate cooler (15),
- a second three-way switching valve (2) allowing the first medium to be discharged from the one plate cooler or the other plate cooler,
- a third three-way switching valve (3) allowing the second medium to be supplied to the one plate cooler or the other plate cooler,
- a fourth switching valve (4) allowing the second medium to be discharged from the one plate cooler or the other plate cooler, and in that the valve bodies of the four valves (1-4) are connected to one another by an actuating mechanism (19, 20, 21, 22), in such a manner that when one of the four valves is switched the other three valves are also switched.
Dependencies are inferred from the claim text.