DE3333835A1 - Peristaltic travelling wave drive - Google Patents

Abstract

An elastic diaphragm with magnetisable particles encloses an at least approximately circular, oblong body to a linear motor. When a travelling magnetic field is applied, this formation, immersed in a liquid, experiences a wave movement on the surface, the gap between diaphragm and fixed body delivering liquid.

Description

Peristaltic traveling field drive

This trfindug makes it its task to create a suitably shaped To advance structures in a flowable or slippery environment.

This structure to be driven forward is of an elastic membrane, the enveloping jacket, surrounded by a deformable medium on a certain Distance to the solid surface of the structure is kept, forming the gap desired locomotion are orthogonal to the direction of movement on the entire solid, i.e. inner 'surface suitable for this purpose, electr. Field information ring arrangements'that act on magnetizable particles in the enveloping jacket capital.

Will these magnets move from the front in a meaningful time sequence When switched from the end to the rear, the medium surrounding the structure is displaced in such a way that it experiences a propulsive force.

The coat leads with a series of alternating constrictions and Bulges from a peristaltic movement.

The use of this drive can vary considerably in size be practiced.

Two main modes of action are explained using examples, with Overlaps are also possible.

Static or gas static propulsion This is where peristalsis works on more or less rigid or flexible inner walls of a tubular nature.

The elongated hollow organs are an important application in humans or animals.

When used as an intestinal probe, for example, the Wanderfel & -antriebskopf Openings for the rinsing liquid, suction, possibly endoscope and the electrical supply line with the corresponding connection hoses.

In a particularly interesting embodiment, the gap is the gap is used as an active pump to remove the items to be washed flows out at the front end under pressure control and passes over with the items to be washed suitable openings in the gap, there is pumped to the rear end and The mouthpiece has to be designed like a lip so that it can be grasped and to provide assistance to crushers of hardened boluses. ”This active transport is the method of choice for safe and low-impact emptying.

The drive unit itself can consist of quite elastic material and be so long that the forces per unit area for tissue protection are extraordinary can be kept small.

The control is in the middle of simple microelectronic components to be realized with a small volume and with extremely thin connecting cables to connect outside, b) Dynamic propulsion This is where the Drive in flowable media whose density is sufficiently high for the introduction of forces so that in general only liquids, especially water, come into question.

The main application is the propulsion of underwater vehicles to see how submarines, torpedoes, etc.

The peristaltic Wancierfeld drive proves itself for this application as ideal: Almost the entire submerged surface is the purpose of the tunneling assignable - during the march speed is the slip between the flowing around Water and the peristaltic surface movement are very small.

To influence the direction of travel and the position in space, the ring-shaped one To divide the winding arrangement into ring segments in terms of size and effect The direction of the peristalsis must be switched separately.

Noise with the absence of screw noise and minimized flow # passive location is impossible.

In addition, it is due to the soft, enveloping surface inherent in the system With the many indentations and bulges, active localization is equally not possible.

To increase the efficiency of the drive, the external and internal conveyance to take advantage of the enveloping jacket.

In the direction of travel in front there are inlet openings with the communicate with the surrounding water; there is a corresponding one at the rear end The traveling field drive acts on the water that has flown into the gap a pumping action in the direction of the outlet, which contributes to the propulsion.

An intestinal probe is shown in FIG. 1 as a possible embodiment.

The base body 1 carrying the field magnet winding is for the The flushing channel is hollow, the flushing liquid exits at the front end 3 and is passed through the lip-like protrusions 3 of the enveloping jacket 2 in the gap 7 with Loaded with the wash ware promoted.

The connection hose takes care of the inlet and outlet lines 6 and 4 - Blank page -

Claims (6)

Claims lo drive characterized 9that a to be driven Formation of an elastic, suitably deformable, and magnetizable Coat is wrapped at a suitable distance from the surface of this structure, wherein a series of fixed winding arrangements creates a wake movement in the enveloping jacket is forced (peristaltic traveling field drive) 2nd drive after 1st thereby characterized ~ that the magnetic winding arrangement is divided into annular segments is to differentiate lateral movements. Taenien-like stiffeners isolate the corresponding surfaces. 3. Drive according to 1 characterized ~ that one fulfills the gap space Intermediate medium flows back through compensation channels. 4. Drive according to 1. characterized in that the space filling the gap The intermediate medium communicates with the surrounding fluid in such a way that it is via an outlet nozzle supports the advance. 5. Drive according to 1. characterized by the fact that the spa is brought up to a Absorbs washing liquid and actively transports the items to be washed. 6. Drive according to 5. characterized ~ that the rinsing liquid The receiving mouthpiece is designed in such a way that a lip-like movement results in the comminution and promotes the items to be washed.