Übersetzung für "Betätigungsventil" in Englisch

Each pneumatic piston 8 is preferably controlled by an actuating valve of the above described kind.

For cleaning applications the spray gun is opened and closed as usual by the operating valve.

In order to open or block the air feed an actuating valve 20 is provided.

Thereupon the actuation valve 42 for the spider 31 trips.

Thereby, the mediums? path to the actuation valve 42 is freed.

The medium to the actuation valve 142 is blocked off and emptied.

Actuating valve 17 is also constructed as a relay valve—also a standard design.

On the control side, actuating valve 17 is connected to pneumatic brake conduit 19 .

In this embodiment, further, operating valve 19 of metering pump 13 is influenced by a manually adjustable pressure regulator 191, thereby allowing for multiplication of the amount metered.

To actuate the hoisting/tipping device, a hydraulic system is provided which comprises an actuating valve 37a and 37b for each individual hoisting/tipping device 20a and 20b and a shut-off and change-over valve 38 for selecting individual operation or common operation of the two individual hoisting/tipping devices 20a and 20b.

When the actuating lever 26 is moved out of its central position as depicted in the drawing and pivoted in a vertical plane so that the hand-grip 28 is lifted upwards thereby causing the guide section 31 to move downwardly into the channel section 33, the actuating section 30 of the actuating lever 26 is pivoted downwards into engagement with the actuating rod 11 of the chair support column 7 causing the actuating rod to be pushed down into the column.

If, for example, a conical cheese formed about a cardboard tube, which has been widened in the area of its large diameter, has become stuck in the tube receiver of a winding creel, this condition is detected by the service unit by means of an appropriate sensor and the service unit, whose control computer is also directly connected via the machine bus with the winding station computer of the winding station which is just being serviced, initiates the respective winding station computer to positively actuate the actuating valve of the cheese brake, preferably several times briefly.

The actuating valve 23 illustrated in a preferred configurational embodiment in FIGS. 6, 7, 8, 9 a and 9 b is characterized in that the valve or control elements, described in connection with FIGS. 4 a and 4 b, are mounted in a space-saving way in a compact valve module.

The actuating valve contains, in addition to the valve unit explained in connection with the valve bodies 31, 36, and 38, a second valve unit which is configured symmetrically thereto whose details are illustrated to the left in FIG. 6 and have the same reference numerals as the valve unit illustrated to the right in FIG. 6, wherein the reference numerals for the left valve unit are marked with an apostrophe.

On the output side, actuating valve 17 delivers a set pressure (p set) to pressure conduit 10 .

It is required in connection with such an actuating valve that after release of the respectively actuated relay valve, the pneumatic cylinder or its piston remains loaded with compressed air on both ends, that upon release of the previously actuated valve no further venting or pressure relief of both pressure chambers occurs, but that instead a positional locking of the pneumatic cylinder is effected, i.e., a bidirectional pneumatic cylinder should be moved by means of preferably manually actuated relay valves into its respective end positions and, upon cancellation of actuation, should be directly stoppable in its advancing movement.

The actuating valve according to claim 3, comprising a common valve module (25, 26), wherein the relay valves and the valve units are seat valves arranged in the common valve module and connected to one another such that upon actuation of one of the two relay valves the first pressure chamber is loaded with compressed air, while the second pressure chamber is vented so that, upon release of the momentarily actuated relay valve, the first and second pressure chambers of the pneumatic cylinder are loaded with compressed air and a positional locking of the pneumatic cylinder is achieved.

The actuating valve according to claim 4, wherein the valve module (25, 26) comprises a distribution chamber (28) common to the two relay valves and connected to a compressed air source, wherein upon actuation of a one of the two relay valves a connection is provided to the compressed air connecting channel (50; 50 ?) correlated with the actuated relay valve.

The actuating valve according to claim 8, wherein the venting channel (46) has a venting throttle.

Furthermore, the driving instructor's area has a second brake pedal that acts upon a hydraulic circuit via an application valve and that can act upon the first brake pedal of the driver's area via mechanical connection elements and override it from the driving instructor's area.

The invention has the object to provide an actuating valve which does not have the disadvantages which are caused, in particular, by employing a 5/3 port sliding valve.

Upon pressure relief of the differential pressure chamber 27 via the actuating valve 31, the booster piston 28 moves with its face end 29 into the high-pressure chamber 9 .

An activating valve 16, with which the air supply can be stopped especially when only hot milk without foam is to be produced and dispensed, is further envisaged in the air supply line 5 .

The actuating valve 31 for pressure relief of the differential pressure chamber 27 may for instance be embodied as a 2/2-way valve and communicates with a low-pressure region, not shown in further detail here in FIG. 2 .

A pressure relief of the control chamber 34 is effected via an outlet throttle 36 into the return 13, which adjoins the actuating valve 32 for triggering the fuel injector 10 .

Instead of the magnet armature/magnetic coil apparatus 58, 60, the actuating valve 31 can also be actuated by means of a piezoelectric actuator not shown in FIG. 1 .