EP 1320576 A2 20030625 - BIODEGRADABLE FUNCTIONAL FLUID FOR MECHANIC DRIVES
Title (en)
BIODEGRADABLE FUNCTIONAL FLUID FOR MECHANIC DRIVES
Title (de)
BIOLOGISCH ABBAUBARE FUNKTIONSFLÜSSIGKEIT FÜR MECHANISCHE ANTRIEBE
Title (fr)
LIQUIDE FONCTIONNEL BIODEGRADABLE POUR ENTRAINEMENTS MECANIQUES
Publication
Application
Priority
- DE 0103672 W 20010920
- DE 10049175 A 20000922
Abstract (en)
[origin: WO0224841A2] The invention relates to a water-based biodegradable functional fluid for mechanical drives, preferably for use in steam engines. The aim of the invention is to create functional fluids for use in mechanical drives, particularly for hydrodynamically lubricating plain bearings, preferably for crankshafts of superheated steam engines having customary non-overly precise bearing play. The inventive fluids should be able to be used in closed power pack systems also in the existence of sump temperatures exceeding 120 DEG C, e.g. in the lubricant pan located under a crank drive and be water-based or able to be diluted with water. According to the invention, this is achieved by a percentually low addition of polyaspartic acid to water or to water-glycol mixtures, whereby polyaspartic acid having a molar mass greater than 1,000 and up to 10,000 g/mol is preferably used.
[origin: WO0224841A2] The invention relates to a water-based biodegradable functional liquid for mechanical drives, preferably for use in steam engines. The aim of the invention is to create functional liquids for use in mechanical drives, particularly for hydrodynamically lubricating plain bearings, preferably for crankshafts of superheated steam engines having customary non-overly precise bearing play. The inventive liquids should be able to be used in closed power pack systems also in the existence of sump temperatures exceeding 120 DEG C, e.g. in the lubricant pan located under a crank drive and be water-based or able to be diluted with water. According to the invention, this is achieved by a percentually low addition of polyaspartic acid to water or to water-glycol mixtures, whereby polyaspartic acid having a molar mass ranging from 1,000 to 10,000 g/mol is preferably used.
IPC 1-7
IPC 8 full level
C10M 169/04 (2006.01); C10M 173/02 (2006.01)
CPC (source: EP US)
C10M 105/14 (2013.01 - EP); C10M 107/34 (2013.01 - EP); C10M 129/20 (2013.01 - EP); C10M 145/26 (2013.01 - EP); C10M 145/28 (2013.01 - EP); C10M 145/38 (2013.01 - EP); C10M 149/14 (2013.01 - EP); C10M 149/18 (2013.01 - EP); C10M 169/041 (2013.01 - EP US); C10M 173/02 (2013.01 - EP US); C10M 2201/02 (2013.01 - EP US); C10M 2207/022 (2013.01 - EP US); C10M 2207/0225 (2013.01 - EP US); C10M 2207/044 (2013.01 - EP US); C10M 2209/103 (2013.01 - EP US); C10M 2209/1033 (2013.01 - EP US); C10M 2209/104 (2013.01 - EP US); C10M 2209/1045 (2013.01 - EP US); C10M 2209/1055 (2013.01 - EP US); C10M 2209/1065 (2013.01 - EP US); C10M 2209/1075 (2013.01 - EP US); C10M 2209/1085 (2013.01 - EP US); C10M 2209/109 (2013.01 - EP US); C10M 2209/1095 (2013.01 - EP US); C10M 2217/00 (2013.01 - EP US); C10M 2217/02 (2013.01 - EP US); C10M 2217/04 (2013.01 - EP US); C10M 2217/041 (2013.01 - EP US); C10M 2217/044 (2013.01 - EP US); C10M 2217/045 (2013.01 - EP US); C10N 2020/01 (2020.05 - EP US); C10N 2040/02 (2013.01 - EP US); C10N 2040/135 (2020.05 - EP US); C10N 2050/01 (2020.05 - EP US)
Citation (search report)
See references of WO 0224841A2
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
WO 0224841 A2 20020328; WO 0224841 A3 20030213; DE 10049175 A1 20020425; EP 1320576 A2 20030625; US 2004094743 A1 20040520; US 2005143264 A1 20050630; US 6913707 B2 20050705; US 7060199 B2 20060613
DOCDB simple family (application)
DE 0103672 W 20010920; DE 10049175 A 20000922; EP 01985265 A 20010920; US 1942904 A 20041222; US 38003203 A 20030310