Mixing valve
First Claim
1. In a mixing valve for liquids, having:
- a ball-like valve plug with liquid inlet and liquid outlet ports therein, said ports being joined together within said plug;
a valve housing having a valve seat face of the same form as the plug with said plug resting thereon, said plug and said housing having a common middle point about which said plug is rotatable relative to said housing, said housing having inlet ducts for the liquids to be mixed and an outlet duct for the mixed liquids, said ducts having ports in said face; and
, a driving part fixed to said plug, rockable in a plane of rocking therewith about a rocking axis perpendicular to the rocking plane, for changing the outlet flow rate of liquid from the valve and rotatable therewith for changing the mixing ratio of the two liquids, said driving part having a lengthwise axis, the invention comprising;
a guide plate for said driving part, said plate having a slot in and along which said driving part is movable, but keyed against rotation relative to said slot, said guide plate being turnable in a plane parallel to said rocking axis, said plug being rotatable only about a plug rotation axis which is perpendicular to said guide plate plane, runs through said middle point and is fixed relative to said valve housing but not said plug, and said driving part being rockable only about said rocking axis, which runs through said middle point and is fixed relative to said plug but not said valve housing.
1 Assignment
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Accused Products
Abstract
A single mixing valve has a ball-like valve plug with hot and cold water inlet ports and outlet ports and a valve housing having a valve seat face of the same form as the plug. The housing has inlet ducts for the hot and cold water to be mixed and an outlet duct for the mixed water, the ducts porting into the face. A driving part is joined with the plug and is able to be rocked therewith for changing the rate of outlet of water from the valve and to be moved for changing the mixing ratio of the hot and cold water. The driving part is limited in its rocking motion to motion about a rocking axis running through a middle point of the plug and is limited to turning about an axis of turning running through the middle point. The valve has a guide plate, which may be turned in a plane parallel to the rocking axis of the driving part, with same in relation to the housing. The plate has a slot in which the driving part is keyed while being able to be moved along the slot. With this system it is not possible for the plug to be moved into skew positions.
20 Citations
39 Claims
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1. In a mixing valve for liquids, having:
- a ball-like valve plug with liquid inlet and liquid outlet ports therein, said ports being joined together within said plug;
a valve housing having a valve seat face of the same form as the plug with said plug resting thereon, said plug and said housing having a common middle point about which said plug is rotatable relative to said housing, said housing having inlet ducts for the liquids to be mixed and an outlet duct for the mixed liquids, said ducts having ports in said face; and
, a driving part fixed to said plug, rockable in a plane of rocking therewith about a rocking axis perpendicular to the rocking plane, for changing the outlet flow rate of liquid from the valve and rotatable therewith for changing the mixing ratio of the two liquids, said driving part having a lengthwise axis, the invention comprising;
a guide plate for said driving part, said plate having a slot in and along which said driving part is movable, but keyed against rotation relative to said slot, said guide plate being turnable in a plane parallel to said rocking axis, said plug being rotatable only about a plug rotation axis which is perpendicular to said guide plate plane, runs through said middle point and is fixed relative to said valve housing but not said plug, and said driving part being rockable only about said rocking axis, which runs through said middle point and is fixed relative to said plug but not said valve housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
- a ball-like valve plug with liquid inlet and liquid outlet ports therein, said ports being joined together within said plug;
Specification