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1.发明公开An engine coolant composition and a method of reducing corrosion 审中-公开Motorkühlmittelund Verfahren zur Korrosionsverminderung
公开(公告)号：EP1170348A2
公开(公告)日：2002-01-09
申请号：EP01305379.8
申请日：2001-06-21
申请人： FLEETGUARD, INC.
发明人： Hudgens, R. Douglas
IPC分类号： C09K5/20
摘要： In general this invention relates to an antifreeze composition that can be used in the cooling systems of internal combustion engines, for example, in heavy-duty diesel engines, light duty trucks and cars. The antifreeze composition can be added to water or other suitable liquid coolant in the cooling system, to lower the freezing point temperature of the coolant and inhibit corrosion of metallic components associated with the cooling system. The antifreeze composition is particularly well suited, although not exclusively, for use with hard water. The antifreeze composition includes an organic acid component comprising adipic acid and at least one of benzoic acid and one or more C 9 -C 12 dicarboxylic acid--or salts of these acids. The antifreeze composition also includes other anti-corrosive additive, for example, molybdate, nitrite, nitrate silicate azoles and a variety of buffer agents.
摘要翻译： 本发明一般涉及可用于内燃机的冷却系统中的防冻组合物，例如在重型柴油发动机，轻型卡车和汽车中。 防冻剂组合物可以加入到冷却系统中的水或其它合适的液体冷却剂中，以降低冷却剂的凝固点温度并且抑制与冷却系统相关联的金属组分的腐蚀。 防冻剂组合物特别适用于但不限于与硬水一起使用。 防冻剂组合物包括包含己二酸和至少一种苯甲酸和一种或多种C 9 -C 12二羧酸或这些酸的盐的有机酸组分。 防冻剂组合物还包括其它抗腐蚀添加剂，例如钼酸盐，亚硝酸盐，硝酸盐硅酸盐唑类和各种缓冲剂。
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公开(公告)号：EP1170348A3
公开(公告)日：2004-01-02
申请号：EP01305379.8
申请日：2001-06-21
申请人： FLEETGUARD, INC.
发明人： Hudgens, R. Douglas
摘要： In general this invention relates to an antifreeze composition that can be used in the cooling systems of internal combustion engines, for example, in heavy-duty diesel engines, light duty trucks and cars. The antifreeze composition can be added to water or other suitable liquid coolant in the cooling system, to lower the freezing point temperature of the coolant and inhibit corrosion of metallic components associated with the cooling system. The antifreeze composition is particularly well suited, although not exclusively, for use with hard water. The antifreeze composition includes an organic acid component comprising adipic acid and at least one of benzoic acid and one or more C 9 -C 12 dicarboxylic acid--or salts of these acids. The antifreeze composition also includes other anti-corrosive additive, for example, molybdate, nitrite, nitrate silicate azoles and a variety of buffer agents.
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公开(公告)号：EP1170347B1
公开(公告)日：2009-12-30
申请号：EP01305789.8
申请日：2001-07-04
申请人： FLEETGUARD, INC.
发明人： Hudgens, R. Douglas
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公开(公告)号：EP0815916A1
公开(公告)日：1998-01-07
申请号：EP97460023.1
申请日：1997-06-20
申请人： Fleetguard, Inc.
CPC分类号： B01D27/08 , B01D27/06 , B01D35/157 , B01D35/1576 , B01D37/025 , B01F1/0033 , F01P11/06 , F01P2011/061 , F01P2011/068
摘要： A coolant filter for use in filtering a coolant solution which flows through the coolant filter includes a filter housing assembly which is made up of an outer housing (21) which is crimped to a nutplate (22) which defines an internally threaded flow outlet. A generally cylindrical filter element (23) is positioned inside of the filter housing assembly and a first endplate (24) is bonded to the end of the filter element which is adjacent to the nutplate. An endplate member (46) is provided for attachment to the opposite end of the filter element and is configured in such a way so as to define an interior chamber where supplemental coolant additive pellets are stored. A closing plate (25) is applied across the open end of the interior chamber so as to create an enclosed chamber for the supplemental coolant additive pellets (39). A slow release mechanism is provided for controlling the rate of release of the supplemental coolant additive from the enclosed chamber into the coolant solution. In one embodiment of the present invention, the slow release mechanism includes a diffusion tube (56) which defines a diffusion orifice (57). In another embodiment of the present invention, the slow release mechanism includes a semipermeable (or osmotic) membrane wafer. In both instances, the slow release mechanism is positioned between the source of supplemental coolant additive and the flow outlet in the nutplate.
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公开(公告)号：EP1170347A3
公开(公告)日：2004-01-02
申请号：EP01305789.8
申请日：2001-07-04
申请人： FLEETGUARD, INC.
发明人： Hudgens, R. Douglas
摘要： In general, this invention relates to supplemental coolant additive for use in cooling systems, for example, in diesel engine cooling systems. The supplemental coolant additive includes a C 4 -C 6 dicarboxylic acid, preferably adipic acid, and optionally a C 9 -C 12 aliphatic dicarboxylic acid an aromatic monocarboxylic acid, an aromatic dicarboxylic acid and salts of these acids. The supplemental coolant additive also can include a variety of other additives including molybdate salts, nitrate salts, nitrite salts, silicate salts and buffering agents. The supplemental coolant additive is preferably provided as a solid additive or a liquid concentrate. The supplemental coolant additive is preferably added to the liquid coolant over time to provide increased coolant life. Further the supplemental coolant additive provides enhanced anti-corrosion protection in cooling systems that include hard water.
摘要翻译： 通常，本发明涉及用于例如柴油发动机冷却系统的冷却系统中的补充冷却剂添加剂。 补充的冷却剂添加剂包括C4-C6二羧酸，优选己二酸，以及任选的C 9 -C 12脂族二羧酸，芳族单羧酸，芳族二羧酸和这些酸的盐。 补充的冷却剂添加剂还可以包括各种其它添加剂，包括钼酸盐，硝酸盐，亚硝酸盐，硅酸盐和缓冲剂。 补充的冷却剂添加剂优选作为固体添加剂或液体浓缩物提供。 补充的冷却剂添加剂优选随时间添加到液体冷却剂中以提供增加的冷却剂寿命。 此外，补充冷却剂添加剂在包括硬水的冷却系统中提供增强的防腐蚀保护。
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公开(公告)号：EP0815916B1
公开(公告)日：2003-09-03
申请号：EP97460023.1
申请日：1997-06-20
申请人： Fleetguard, Inc.
CPC分类号： B01D27/08 , B01D27/06 , B01D35/157 , B01D35/1576 , B01D37/025 , B01F1/0033 , F01P11/06 , F01P2011/061 , F01P2011/068
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公开(公告)号：EP1170347A2
公开(公告)日：2002-01-09
申请号：EP01305789.8
申请日：2001-07-04
申请人： FLEETGUARD, INC.
发明人： Hudgens, R. Douglas
摘要： In general, this invention relates to supplemental coolant additive for use in cooling systems, for example, in diesel engine cooling systems. The supplemental coolant additive includes a C 4 -C 6 dicarboxylic acid, preferably adipic acid, and optionally a C 9 -C 12 aliphatic dicarboxylic acid an aromatic monocarboxylic acid, an aromatic dicarboxylic acid and salts of these acids. The supplemental coolant additive also can include a variety of other additives including molybdate salts, nitrate salts, nitrite salts, silicate salts and buffering agents. The supplemental coolant additive is preferably provided as a solid additive or a liquid concentrate. The supplemental coolant additive is preferably added to the liquid coolant over time to provide increased coolant life. Further the supplemental coolant additive provides enhanced anti-corrosion protection in cooling systems that include hard water.
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