Control valve for regulating the oil inlet volume of the oil pump used in the high pressure common rail system
A high-pressure common rail system, adjustment and control technology, applied in the direction of fluid pressure actuators, servo motor components, mechanical equipment, etc., can solve the problem of limiting the maximum flow adjustment capacity and range, high requirements for verticality manufacturing and assembly of parts, and maximum flow Capability can not be adjusted and other issues, to achieve the effect of reducing verticality manufacturing requirements, simple structure, and improved circulation capacity
Active Publication Date: 2017-03-29
中国船舶集团有限公司第七一一研究所
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Problems solved by technology
This kind of regulating valve, generally, the maximum flow capacity cannot be adjusted but is a fixed value or the maximum flow capacity can be adjusted through a gasket. The insufficiency of the flow capacity is that the adjustment is not convenient and flexible enough, and the verticality manufacturing and assembly requirements of the parts of this regulating valve are relatively high.
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[0044] Such as Figure 1 to Figure 3 As shown, the present invention is used in the oil pump oil inlet control valve of the high-pressure common rail system, including the proportional electromagnet 1, and the end of the proportional electromagnet push rod 1.1 of the proportional electromagnet 1 is provided with a ball seat 8, and the bottom of the ball seat 8 is provided There is a valve core 13, and a steel ball 9 is arranged between the ball seat 8 and the valve core 13;
[0045] The mating surfaces of the ball seat 8, the valve core 13 and the steel ball 9 are double cone surfaces respectively;
[0046] The mating surface of the ball seat 8 and the steel ball 9 of the present invention is a double-cone surface, and the ball seat 8 can rotate around the steel ball 9 within a certain range, thereby reducing the ratio between the lower end surface of the electromagnet push rod 1.1 and the center line of the valve core 13. The verticality requirements; the ball seat 8 is adap...
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The invention discloses an oil pump oil inlet quantity adjusting control valve used for a high pressure common rail system. The valve comprises a proportional electromagnet. A ball seat is arranged at the tail end of a proportional electromagnet push rod of the proportional electromagnet, a valve element is arranged under the ball seat, and a steel ball is arranged between the ball seat and the valve element. One end of a spring fixedly supports the bottom of the valve element, and the other end of the spring fixedly supports a spring seat. The valve element is located in a cavity of a valve body, the openness of a valve port is changed by adjusting driving current of the proportional electromagnet, and flow adjustment is achieved. The electromagnetic force and the spring force act on the valve element together to enable the valve element to be located at the relative stable position, and a valve port openness control effect is achieved. The valve has a function of cooling the proportional valve in a forced mode, and the flow of a cooling fluid medium is set by changing the diameter of throttling holes.
Description
technical field [0001] The invention relates to a valve, in particular to a control valve for adjusting the oil inlet volume of an oil pump used in a high-pressure common rail system. Background technique [0002] Regulating valve, as a common actuator, generally adopts a single valve hole structure, the same valve core displacement, the maximum flow capacity is relatively small. This kind of regulating valve, generally, the maximum flow capacity cannot be adjusted but is a fixed value or the maximum flow capacity can be adjusted through a gasket. The insufficiency of the flow capacity shows that the adjustment is not convenient and flexible enough, and the verticality manufacturing and assembly requirements of the parts of this regulating valve are relatively high. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a control valve for adjusting the oil inlet volume of the oil pump used in the high-pressure common ...
Claims
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IPC IPC(8): F15B13/02
Inventor方文超张睿平涛赵伟
Owner中国船舶集团有限公司第七一一研究所