DE418479C - Centrifugal machine (compressor or similar) - Google Patents

Description

Centrifugal machine (compressor or the like) is the subject of the invention a centrifugal machine (compressor o. The like.) With guide vanes of a special type that it enables the guide vanes on a machine that is ready for operation to make it shorter or longer for the purpose of increasing the speed of your running bike to be able to change the exiting agent as required, without this being essential Impact losses, beam separation and similar disturbances can occur.

The invention is illustrated in the drawings.

Fig. T shows the known graphical relationships between the efficiency y for the conversion of speed into pressure in the diffuser and the percentage. Proportions of the amount of speed used for friction y r and the amount of speed used as a result of detachment according to the equation y- yr + yl = i. Fig. 2 shows a longitudinal section through a bladed guide channel.

Fig.3 shows a cross-section of this.

Fig.q. illustrates one composed of several parts Vane. Fig. 5 shows the graphic representation of the cross-sectional enlargement in the guide channel. Figure 6 shows an exit diagram of a centrifugal fan.

Fig.7 again shows a longitudinal section through a bladed Guide channel and shows the device for changing the nozzle lengths.

Figure 8 is a cross-section of this.

Figure 9 illustrates a two-part shovel on a larger scale.

For the sake of simplicity, a unicycle machine is used as an example selected, but several wheels can be connected in series in the same way will. The guide channels g, which are in the form of a U-shaped iron, are connected to the impeller f around the partition. The cross-sectional enlargement on the way a-b-c-d through the guide channels is shown in Fig.5.

In the training according to Fig. 3 and q. the guide vanes are composed of individual pieces kl, k., k3 ... When executing according to the fig.; up to 9 two-part blades are used. Here, the section nz is fork-shaped and provided with a toothing n on an inside. The gear o engages in the toothing. Section 1 serves as a guide.

For the purpose of uniform shortening and lengthening of the blades 7 and 8, a ring gear 1) is provided in the embodiment according to FIGS with all gears o is in connection. To this end is on the same Axis with each gear o a pinion r arranged, which all with the ring gear p are engaged. The rotation takes place by means of the hand crank g and the pinion s of the ring gear p.

The mode of operation is as follows: The gas enters the compressor at e (Fig.2), flows through the impeller f and is then thrown at high speed into the guide channels (nozzles) g. At i the gas leaves the engine. When changing the jet speed due to a change in delivery rate, speed, pressure or the like. In the embodiment according to Fig. 2 to q. the guide vanes are shortened or lengthened by removing or adding the individual sections k1, k, k3 ... k3 ... shortened or lengthened.

In the training according to Fig. 7 to 9, turning the hand crank g the ring gear p and thus the pinion o set in rotation and in this way a uniform, rapid adjustment of the guide vanes is achieved.

The automatic adjustment of the shovel; length depending of the delivery quantity, the speed, the pressure or negative pressure, etc. in the manner of a Servo motor is known. From a special representation of the automatic drive is distanced because it is known per se.

Claims (3)

PATf: NT CLAIMS: i. Centrifugal machine (compressor or the like), marked by means of guide vanes of a special design, which makes it possible to get one ready for use installed machine to shorten or lengthen the guide vanes. 2. Centrifugal machine according to claim i, characterized in that the guide vanes (g) are composed of individual parts (k1, k .., k3... ) , By adding or removing them the change in the nozzle length is achieved. 3. Centrifugal machine according to claim i, characterized in that the guide vanes (g) consist of two parts (1, m) which can be displaced in or on one another.