The Coupling Via a Jacket Engaged on a Shoulder
According to another aspect, the object of the invention is to produce such a solenoid valve in the fact that the valve body remains compatible with today's geometric and dimensional requirements, and wherein the actuation force produced by theelectromagnetic actuator remains compatible with the reliable actuation requirements of the stopper to control the fluid to all of the circumstances.
Because of the existence of of the protruding shoulder, it vital to make involving a plunge-cut precision grinding. The plunge-cut precision grinding is finished by a radial forward movement of your grinding mill, a radial forward movementwhich differs depending on whether the mill comes to precision grind the shoulder or the mill comes to precision grind the part of the valve body whose diameter has previously been reduced during the rough machining. Multiple passes are then necessarydue to the limited width of the truth grinding mill with this increasing usually less when compared to length of the valve body ignore.
This dispenses together with plunge-cut precision grinding steps, thanks to your absence of a monoblock protruding shoulder on the valve body. But it really is necessary to providethe additional and costly operation of material rebating in order to attach the axi-symmetric piece suited to the valve whole. In addition, the mechanical strength of the material rebate is not guaranteed and end result is a risk that clearance mayprogressively appear and the coupling may split up. In addition, the fitted axi-symmetric piece has a posh shape which raises the cost of create.
A solenoid valve for controlling the flow of a fluid in a hydraulic circuit, comprising: a metallic valve body defining a valve portion having at least one fluid duct, atleast one peripheral groove, a stopper for allowing or preventing the flow of fluid in the fluid duct and a mechanical connection to actuate the stopper, an electromagnetic actuator arranged to actuate the mechanical connect.
Consequently, the production of a valve body with protruding shoulder has been hitherto costly both through the rough machining and throughout the precision grinding in order to attain a valve body that satisfies the geometric and dimensional qualityconditions. This geometric and dimensional quality however remains needed to the very operation of the valve body in the solenoid valve, make sure that good circulation of this fluid in the hydraulic circuit, without leaks or defects in the control of itsflow.
The valve body thus furnished featuring its fitted shoulder can be used with a large dimension electromagnetic actuator, particularly in scenario where a considerable actuation force important in the conditions of use of the solenoid valve thusformed.
The solenoid valve is thus for you to mount, the axial nose providing natural light centering for the valve body relative to the winding within the electromagnetic actuator. In the where the valve body consists of one ferromagnetic material, the latterthus comes to effectively close the magnetic loop of this electromagnetic actuator to provide it the excellent performance.
With this type of solenoid valve structure, is actually not then easy to achieve a substantial cost saving in manufacture and assembly, by manufacturing separately the valve body itself along with the matching retaining half-washers from pieces of smallerdimensions, without major material wastage. The half-washers form pieces whose simple shape can be generated at low cost. The valve body blank, then having no shoulder, may be precision ground at less cost utilizing a throughfeed precision grinding. Duringthe assembly, the adaptation of the jacket once the matching half-washers are inserted into the peripheral groove simultaneously, in a single operation, attaches the half-washers to your valve body and attaches the electromagnetic actuator to the valvebody.
In particular this afford them the ability to use, to from the valve body, a material more fitted to the particular requirements of use of the solenoid valve, without, for any that, compromising the correct operation of this latter. It is bepossible, for example, to the valve body in aluminum and for the purpose of decreasing the weight in the solenoid valve.
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