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  • [发明专利]WO1992HU00020 _ KOWAX KERESKEDELMI, FEJLESZTOE ES GYARTO KFT 1992年05月11日
    The invention relates to a fuel additive containing at least one unsaturated aliphatic hydrocarbon and at least one organic sodium compound in a quantitative ratio in which the quantity of sodium is at the most equivalent to that of the chlorine, and ...
  • [发明专利]US19920861323 _ UNION OIL COMPANY OF CALIFORNIA 1992年03月31日
    Radioactivity and fluoride ion are inhibited or prevented from precipitating in scale formed from a geothermal brine by adding a scale inhibitor to the cooling brine solution. Preferred scale inhibitors include polyacrylate dispersants and phosphonome...
  • [发明专利]US19920861529 _ UNION OIL COMPANY OF CALIFORNIA 1992年03月31日
    Soluble salts are prevented from precipitating from a brine concentrate produced from the flashing a geothermal brine by diluting the brine concentrate with preconditioned condensate. The pH of the condensate is first adjusted to within two pH units o...
  • 4. VANE
    [发明专利]JP19920190364 _ HITACHI METALS LTD 1992年07月17日
    PURPOSE:To provide a vane used for a compressor using substitutive Flon as a refrigerant and improving its wear resistance. CONSTITUTION:This vane is constituted of high speed tool steel having compsn., preferably, contg. 1.0 to 2.5% C, <=1.5% Si,<=1....
  • 5.
    [发明专利]JP19920509112 _ 1992年05月13日
  • 6.
    [发明专利]JP19920302734 _ 1992年11月13日
  • [发明专利]JP19920008159 _ MITSUBISHI HEAVY IND LTD 1992年01月21日
    PURPOSE:To improve a heat treatment method of a cam plate having uneven cross-sectional shape. CONSTITUTION:In the heat treatment method of the cam plate having uneven cross-sectional shape used as constituting parts of a hydraulic motor, cooling from...
  • [发明专利]JP19920331354 _ TOSHIBA ENG CO LTD 1992年12月11日
    PURPOSE:To form a strong, fine, and highly-adhesive coating film on a surface of a hydraulic machine for improving durability by generating plasma jet which includes flame coating material of high melting point and high harness with abrasion resistanc...
  • [发明专利]EP19920910020 _ KOWAX KERESKEDELMI, FEJLESZTO ES GYARTO KFT 1992年05月11日
  • [发明专利]EP19920908752 _ ANDRITZ-PATENTVERWALTUNGS-GESELLSCHAFT M.B.H. 1992年05月13日
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