The valve body is generally cylindrical, which you to be engaged and attached within a sealed manner in a housing provided within a hydraulic block that the fluid with regard to controlled circulates. These electromagnetic actuator protrudes from thehydraulic block and is held by its coupling to the valve body. The coupling via a jacket engaged on a shoulder protruding by means of valve body helps make it possible to fasten a magnetic actuator of sufficient power whose external diameter is thereforegreater than regarding the valve process.

According to another aspect, the object of the invention is to produce such a solenoid valve in the fact that valve body remains compatible with today's geometric and dimensional requirements, and who the actuation force produced by theelectromagnetic actuator remains appropriate the reliable actuation requirements of the stopper to control the fluid efforts . circumstances.

Because of existence of the protruding shoulder, it is necessary to make involving a plunge-cut precision grinding. The plunge-cut precision grinding is performed by a radial forward movement with the 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 at this point usually less versus the length of the valve body pay no heed to.

This dispenses while using the plunge-cut precision grinding steps, thanks for the absence of a monoblock protruding shoulder on the valve body. But it is necessary to providethe additional and costly operation of material rebating in order to attach the axi-symmetric piece designed to the valve torso. In addition, the mechanical strength of product rebate is not guaranteed and end result is a risk that clearance mayprogressively appear and the coupling may break. In addition, the fitted axi-symmetric piece features a complex shape which increases the associated with manufacture.

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 noticeably mechanical connection to actuate the stopper, an electromagnetic actuator arranged to actuate the mechanical correlation.

Consequently, the manufacturing of a valve body with protruding shoulder has been hitherto costly both throughout the rough machining and during the precision grinding in order to accomplish a valve body that satisfies the geometric and dimensional qualityconditions. This geometric and dimensional quality however remains vital to the very operation of the valve body in the solenoid valve, be sure good circulation of your fluid in the hydraulic circuit, without leaks or defects in the associated with itsflow.

The valve body thus furnished with its fitted shoulder could be used with a wide dimension electromagnetic actuator, particularly in circumstance where a considerable actuation force is necessary in the conditions of use of your solenoid valve thusformed.

The solenoid valve is thus to be able to mount, the axial nose providing a straight forward centering in the valve body relative on the winding of your electromagnetic actuator. In the case where the valve body consists from a ferromagnetic material, the latterthus comes to effectively close the magnetic loop for the electromagnetic actuator to provide it with an excellent tecnicalities.

With associated with solenoid valve structure, is certainly then easy to achieve an amazing cost saving in manufacture and assembly, by manufacturing separately the valve body itself as well as the matching retaining half-washers from pieces of smallerdimensions, without major material wastage. The half-washers form pieces whose simple shape can come in at affordable rate. The valve body blank, then without shoulder, end up being precision ground at less cost any throughfeed precision grinding. Duringthe assembly, the adaptation of the jacket had been matching half-washers are inserted into the peripheral groove simultaneously, in the single operation, attaches the half-washers into the valve body and attaches the electromagnetic actuator for the valvebody.

In particular this can make it possible to use, to the valve body, a material more suitable the particular requirements people of the solenoid valve, without, for each that, compromising the correct operation among the latter. It truly is going bepossible, for example, to generate the valve body in aluminum for your purpose of reducing the of the solenoid device.