Solar collector

US4335708A · kind A · utility

Assignee

• Heinz Holter

Inventors

• Heinz Holter
• Heinz Gresch · Wickede (Ruhr), DE
• Heinrich Igelbuscher

Key dates

• Filing date: Mar 21, 1979
• Grant date: Jun 22, 1982
• Expiry date: Mar 21, 1999

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/44
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

Solar collectors have flat plate-like foil tubes with permeable interlayers with lattice structure surfaces bonded to the foils of the tube. Several tubes with insulating backing are seam bonded together to form a sheet for covering a roof. Heat transfer medium flows from inlets into a space along one side of the tube, through the permeable interlayer into a space along the other side of the tube and through an outlet. The structure is thin, light, inexpensive and easy to install. Flow of medium which covers substantially all of a surface may be precisely controlled. Temperature of medium in the collectors may be maintained only slightly higher than temperatures throughout the system.