Reciprocating electrical machine - has piston and cylinder with armature winding and permanent magnet field

• Main Author: NOELTNER,GERHARD
• Format: Patent
• Language: English; German
• Published: 15.05.1975
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; ENGINE PLANTS IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES; STEAM ENGINES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

The machine may be used as a motor to drive a pump or compressor, or as a generator using hydraulic, pneumatic or thermal energy as the prime mover. Typically the piston is of permanent magnet material and moves inside a cylinder surrounded by a winding connected to electrical terminals. Alternatively the piston can be the armature, being connected to the supply by brushes, with a permanent magnet cylinder block. In a combustion engine application the ends of the cylinder can be the combustion chambers with necessary inlet and outlet valves. The cylinder and piston may also take the form of a rotary engine of the wankel type.