DE60753C - Valve and piston movement on air pumps - Google Patents

Description

IMPERIAL

PATENT OFFICE. \ |

The innovation relates to air pumps, in which the suction and discharge valves through an electric current can be actuated, which is effected by the mechanism to be described here is effected.

The attached drawing illustrates the innovation. In

Fig. Ι is a vertical section of an air pump and in

Fig. 2 shows its top view showing the connection to a source of electricity.

A is the housing and BB ¹ are Cylinder, which means perpendicular to the housing ¹ are arranged Flantschen bb. The upper part or cover of the housing A is provided with openings which communicate with the openings in the cylinder. A crankshaft C passes through the housing A, one end of which is mounted inside the same, while the other end passes through a stuffing box and is mounted on the outside of the housing. The shaft has two cranks cc in opposite positions, and each one is arranged in the center of a cylinder. The cranks are connected to the rods DZ) ^{1 of} the pistons FF ¹ , which move inside the cylinder.

The upper ends of the pump cylinders are closed by attachments GG ¹ , the bottom plates of which are provided with conical valve openings gg ¹ g ² g ³ , of which the openings gg ³ taper upwards and the openings g ⁱ g ² downwards. The essays G and G ¹ are divided into two halves H and H ^{1 by a partition.} The suction tubes hh, with which are connected to be emptied Gefäfse, enter the detachments H, and the Auslafsröhren hh ^l convey the connection between division H ¹ and the cylinder J. The latter is arranged on the top plate of the casing A, with its interior he is in communication. The upper part of the cylinder J is equipped with air holes j and a dome /. KK ¹ K ² K ³ are electromagnets which are attached to the top plates of the attachments G and G ¹ , the bores of which communicate with the departments HH and H ¹ H ^1. The cores kk ¹ k ² k ^{3 of} the electromagnets serve as valve stems, and their lower ends are provided with conical valve heads which fit ^{into the valve openings g'g-'g ^ g · 8} in the base plates of the attachments GG ^1. Guide sleeves ii , in which the cores k ² k ¹ are suspended on spiral springs i ² i ³ , are attached to the upper parts of the electromagnets K ² K ^1. The valve heads at the lower armature ends are provided with packing rings for an airtight seal.

The nuclei are made of soft iron, but the lower parts of them are made of Brass.

L is an electrical commutator made of hard rubber or other non-conductive material in the form of a disk, which is attached to the crankshaft and is driven by it. Semicircular line rings / V- (Fig. 2) are attached to the commutator disk.

Claims (2)

brought, namely ring Z somewhat smaller in diameter than ring Z1, so that each half-ring is of a different circumference, as shown in FIG. A stand M carries a resilient brush o which presses alternately against the half-rings / and Z1, while the commutator disc is in rotating motion. The half rings / and Z1 are conductively connected to one another in such a way that both halves are supplied with electrical current at the same time by means of the brush ο. The stator M is also equipped with a stationary pair of brushes m m1 and two further brushes η η1, and from this the brushes m1 and η come into contact alternately with the ring half / and the brushes m and n1 with the ring half Z1 when the pump is in Activity is. The electric current comes from an electricity source N, goes through the spring brush o after the commutator and through the ring halves / and Z1 and the line brushes m m1 respectively. η η1 after the electromagnet; the current is closed by wires going from the electromagnets back to the source of electricity, as shown in FIG. The housing A, the cylinder B B1 and the cylinder J are filled with oil, as is usually the case with air pumps. As shown in Fig. 1, the piston F is in the position that the valve g2 of the compartment H1 of the attachment G is closed and the air is driven through this valve and the outlet pipe Z1 into the cylinder / from where it is driven through the Air openings j escapes. The valve stem or core k is able to drop from the suction valve g into the compartment H of the attachment G during the decline of the piston F, whereby the suction compartment H of the attachment G is opened. The fall of the core k is limited by the stop pin d. Of course, valve g2 is closed before valve g is opened. The piston F1 is in the position at the end of its stroke and the valves g1 g3 are in the opposite position to the valves g g2. The opening and closing of the valves is brought about by the electric current while the machine is running, in the following way: The brush ο presses against the sector Z and conducts the positive current from the electricity source N into the ring sectors and from here by means of the line brushes m m1 to the electromagnet K K2, and the circuit is closed by the wire going from the electromagnet to the negative pole of N. The cores k k2 of the magnets are automatically pulled up, whereby the valve g is closed and the valve g'2 is opened. With further rotation of the crankshaft, the line brush n1 comes into contact with the ring sector Z1 and the brush η comes into contact with the ring sector Z, and the current is conducted through the brushes η η l and the relevant wires to the electromagnets K1 K3. Now the cores k1 ks are attracted respectively. lifted, whereby the valve g1 is opened and the valve g3 is closed, while valve g is opened and valve g2 is closed because of the interruption. of the current at the magnet KK2, the cores k k2 are demagnetized and fall back resp. come into the position of the cores Ar1Ar3, as shown in the drawing. In this way the valves are opened and closed at the same time as the pump pistons move up and down. The process of evacuating the air from vessels is exactly the same as with other mechanical air pumps, and will not be described in detail here. Pat en τ claims: 1. In an air pump with electrically bethätigten valves, the arrangement of each of a closed getheilten in two separate divisions (HH ¹ J Ventilkarrimer (GG ¹ J on each of the two Pumpencylinder (BB ¹ J to which chambers in each case two solenoids (KK ¹ and K ² K ³ J are arranged in such a way that their cores (kk ¹ and k ² k ³ ) protrude into the compartments of the valve chamber and carry the corresponding valve cones (gg ¹ and g ² g ³ ). 2. In the device claimed under 1. the actuation of the pump pistons by a crankshaft on which one with two line rings (11 ¹ J, which work against the brushes (o mn WL ¹ H ¹ J ) attached to a fixed stand (M) , equipped commutator disk (L) is arranged. For this purpose "i sheet of drawings.