CONTROL VALVE ARRANGEMENTS

专利名称：CONTROL VALVE ARRANGEMENTS发明人：JOHN ALFRED LIPSCOMBE申请号：US3562784D申请日：19690116公开号：US3562784A公开日：19710209

摘要：1,200,244. Thermostatic servosystems. WALTON ENG. CO. Ltd. Jan.17, 1969[Jan.18, 1968], No.2874/68. Heading G3P. [Also in Divisions F2 and F4] The cooling wateror lubricating oil of a marine diesel engine circulates through a heat exchanger 12 whichalso receives a coolant flow, e.g. of sea water, via line 16 from a 3-way valve 15 Fig.2having a rotor 52, 53 which distributes the coolant between line 16 and a bypass line 17 inresponse to movements of a single-acting piston 40. The piston is controlled by a valve20 which sets up a pressure proportional to the temperature in line 11 as detected bywax-filled element 19. The rotor 52, 53 is adapted to provide a constant total flow areato links 16,17 and functions to maintain the cooling water or oil temperature constant.Stop 60 limits rotation of the rotor. By removing pin 47 connecting crank arm 22 to pistonrod 42, 42a, the rotor can by adjusted by hand lever or locked by nut (58). Valve 20 has aclosure member (29) unseated by spring 35 Fig. 5 and seated by outlet pressure actingon diaphragm (28). The loading of spring 35 is adjusted by element 19 either directlythrough an adjustable tappet or, as shown, through lever 65 loaded by spring 66, fluid-pressure or a weight. Lever 65 has an adjustable fulcrum defined by eccentric 67a;alternatively, the fulcrum may be movable along the lever. The supply to valve 20 may beterminated upon actuating a lever controlling the loading of a pressure regulator (80),

Fig. 9 (not shown) whose output is then used to position valve 15. In fig. 10 (not shown)three 3-way valves 15 can be controlled by respective valves 20 or by a common manualpressure regulator 80. The valve 15 may alternatively control the flow of the coolingwater or oil instead of the coolant.

申请人：WALTON ENGINEERING CO. LTD.

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