A kind of marine gearbox oil composition

Abstract

The present invention relates to a marine gearbox oil composition, which is composed of the following components in mass percentage: (a) at least one synthetic base oil; and (b) at least one antioxidant; (c) at least one Sulfur-containing extreme pressure agents; (d) at least one phosphorus-containing antiwear agent; (e) at least one friction modifier; (f) at least one demulsifier; (g) at least one rust inhibitor; ( h) at least one metal deactivator; (i) at least one antifoam agent. The marine gearbox oil composition of the present invention has excellent high load-carrying performance, wear protection, oxidation stability, anti-emulsification performance and anti-corrosion performance, especially has excellent clutch wear protection performance and sealing material compatibility. The invention can be used in a marine gear box with a clutch, and can fully adapt to the improvement of oil product performance requirements brought about by the technical progress of the current marine gear box.

Description

technical field [0001] The invention relates to a lubricating oil composition, in particular to a lubricating oil composition with outstanding high load-carrying performance, excellent anti-wear performance, excellent clutch protection performance and sealing material compatibility, excellent anti-emulsification performance and good oxidation stability and Marine gearbox oil with anti-corrosion properties. Background technique [0002] The marine gearbox is the main propulsion transmission device of the ship power system. It has the functions of reversing, clutching, decelerating and bearing propeller thrust. It is matched with the diesel engine to form a ship power system. It is widely used in various passenger and cargo ships, engineering ships, fishing boats, offshore And ocean-going ships, yachts, police boats, military ships, etc., are important key equipment in the shipbuilding industry. [0003] With the general development of ship design at home and abroad towards l...

AI Technical Summary

Problems solved by technology

For example, U.S. Patent US20080153725A1 Infineum Co., Ltd. discloses an emulsifiable gear oil for marine reduction gears, which is applied to gear reduction devices for outboard and stern engines of ships located underwater. The gear oil can overcome the negative effects caused by water mixing. But did not mention whether to meet the marine gearbox gear drive and sealing ring compatibility requirements; Chinese patent CN101298579A Afton company discloses a marine lubricating oil composition, applied to two-stroke or four-stroke outboard marine engine Gears or gears of outboard motors for inboard / outboard marine power transmission systems, the lubricating oil and additive composition has improved water emulsification and anti-wear properties, and does not mention whether it meets the gear transmission and sealing of marine gearboxes Ring compatibility requirements; Chinese patent CN102618365B discloses a lubricating oil composition for a reducer in a marine gas turbine. The product has good oxidation resistance, rust resistance, salt spray resistance, emulsification resistance and foam resistance. No mention of marine gearbox clutch protection

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