DE46303C - Regulating device for dynamo-electric machines - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 21: Electrical apparatus.

Patented in the German Empire on June 10, 1888.

The regulator shown for direct current alternators works through the changes the movement of the iron core between the pole terminals caused by the current intensity energized solenoid, creating circuits of an electrical movement device for the Control organ of the engine can be opened or closed.

The solenoid α is connected to the pole terminals of the dynamo. The core a ^{1 of the} same is connected on the one hand to an adjustable spring a ² and on the other hand by a double-armed lever a ³ with a brass cylinder a * , so that the weight of the core is balanced. The brass cylinder α ⁴ carries an insulated rod a ^{5 at the} top, which serves as a guide for the cylinder and at its upper end has a small transverse bar a ^e , which extends between four, two opposing contacts α "a ^{7x and} a ^e a ^{Depending on whether} the current is too strong or too weak or has its correct strength, the lower or upper contacts are closed or both are opened.

With the one lower contact piece a ¹ is the lower and with the one upper contact piece a ^% the upper two solenoids b arranged one above the other respectively. b ¹ in connection, the turns of which are independent of one another. These solenoids bb ^l are parallel branches of the main line, the exit ends of their wire windings are connected to the main line and the entry or supply line ends lead to the above-mentioned contacts α ⁷ α ⁸ .

The associated two other ^{contact pieces} a ^7x and a Sx are connected to the main line at X.

In the iron core b ^{2 of} the double solenoid bb ^x , a rod b ^{s is} rotatably but not displaceably mounted, which at its upper end carries ^{two opposite bevel gears 6 4} b ^s. Between these wheels & * £ ⁵ engages a taper c, the end of the shaft ¹ c of the drive machine sits and takes part in their turn. If the core b " ^{1 of} the solenoid bb ¹ is pulled down, which takes place when the contact α ⁷ a ^{7x is closed} by the increase in the potential difference and the current flows through the lower solenoid b , the upper bevel gear b ⁵ comes with the pin c engaged and rotated by the latter. this rotation occasioned lifting a threaded rod d, which in the bar ^B% has its nut thread and with its upper end to the d an outward arm of a double-armed lever movably suspended ^1, the in the housing d ^{2 of} the throttle valve is movable around a ball pin at d ° , and carries the throttle valve d ⁱ on its other, inner arm by means of a link d ^s . In this way, the valve d ^{i is} moved downwards and the steam inflow opening is reduced.

The reverse process takes place when the contact α ⁸ a ^{Sx is} closed and the current goes through the upper solenoid b ^1. In this case the core ί> ^{2 is} lifted, the disk b ^{l engages} with the pin c

brought, the screw spindle d lowered and the valve d * moved upwards, so that the steam inlet opening is enlarged.

If the current has its correct strength, both contacts α ¹ α ^Ίχ and a ^B a ^{& x are} open and a flat, somewhat corrugated spring b ^e attached to the base plate of the double solenoid bb ¹ , which is connected to the iron core b ² , pulls , the core b ' ² and the disks b * b ⁵ in the middle position, so brings the latter out of contact with the taper c.

At the bottom of the valve d * is attached a piston d ⁵ , the weight of which is so measured that the ^{parts hanging on the outer arm of the lever d 1 are} kept in equilibrium. The piston d ⁵ has grooves in its outer jacket and is loosely guided in the housing in order to relieve the same of the steam pressure and to reduce the friction.

A third solenoid e is connected in the main line, the iron core e ^{1 of which is} replaced by a brass rod e ^2, so that the device also comes into operation when the potential difference remains the same or becomes less, but the amount of current exceeds the permissible level due to insulation disturbances, etc. is connected to the base plate of the double solenoid bb ¹ and carries the latter together with accessories. The core e ¹ is kept pressed against a fixed stop e ⁴ by an adjustable spring e ³ , and this spring e ³ is set so that a downward movement of the core can only occur when the amount of current is too great. If this occurs, the double solenoid bb ^l with its core b ² (to which it is connected by the flat spring b ^e ) and the bevel gears Z> ⁴ b ^& are pulled down, the wheel £ ⁵ with the taper c in Brought engagement and the valve d ⁱ lowered respectively. closed.

Claims (1)

Patent claim: In regulators for dynamo-electric machines driving power machines, in which the circuit of one coil of a double solenoid bb ^{l is} closed by a relay influenced by the current to be regulated, the core b ² of which engages a reversing gear and thereby causes an adjustment of the organ regulating the power machine, which Connection of the double solenoid bb ¹ to the core e ^{1 of} a solenoid e connected to the main line in such a way that the core e ¹ and with it the double solenoid and accessories are only moved in the direction required to close the throttle valve if the amount of current is sufficient exceeds permissible dimensions. For this purpose ι sheet of drawings.