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  • [发明专利]US19800190708 _ ALLIS-CHALMERS CORPORATION 1980年09月25日
    A hydraulic turbine with water passageways and powerhouse for installation at a conventional spillway with gates includes a fabricated steel water passageway and cross beams which also serves as the lateral support between lifting devices which are op...
  • 2.
    [发明专利]JP19800045438 _ KOGYO GIJUTSUIN 1980年04月07日
    The improvement in a wind turbine comprises providing a tower with a freely liftable mount and adapting a nacelle which is fitted with a propeller windwheel consisting of a plurality of rotor blades and provided therein with means for conversion of wi...
  • 3.
    [发明专利]JP19800054094U _ 1980年04月21日
  • [发明专利]JP19800175124 _ MASUDA MASAYUKI 1980年12月10日
    PURPOSE:A permanent engine to be rotated by shifting eccentrically the bearing center of a rotating body. CONSTITUTION:Supporsing An and An' are rotators of equal weight, a rotating device shown in Fig.Iis kept stationary, unless external force acting...
  • [发明专利]FR19800022279 _ ECKERLE GMBH CO KG OTTO 1980年10月17日
  • 6.
    [发明专利]DE19803008379 _ VOITH GETRIEBE KG, 7920 HEIDENHEIM, DE 1980年03月05日
  • [发明专利]WO1980SE00357 _ DENEV M 1980年12月30日
    The invention belongs to the field of wind power systems. The proposed funnel-like constructions can collect wind energy from a large area and concentrate it to a smaller area and increase the velocity of the wind before it drives the propeller, the r...
  • [发明专利]WO1980CH00078 _ SZELLE I 1980年07月02日
    Each structure of force modifiers comprises at least a load which may vary. This load depends directly or indirectly on a moving object. The normal motion of the moving object modifies the position of the load, which modifies the forces at the applica...
  • [发明专利]WO1980US00080 _ HUMISTON G 1980年01月28日
    Binary vapor cycle method of electrical power generation wherein two refrigerant fluids can be used to operate an apparatus for generating mechanical and electrical power, in which the first condenser (18) serves as a heat source for the second evapor...
  • [发明专利]WO1980CH00020 _ HARTMANN E 1980年02月08日
    The energy of the waves under the water surface in the area where a wave current exists is converted into a kinetic energy by means of blades (27), and it is used for power production.
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