Lubricant composition for Miller cycle engines

Abstract

The invention discloses a lubricant composition for Miller cycle engines, which uses HVIH 6 base oil as base oil matched with multiple additives, including a detergent, a dispersing agent, an antioxidation preservative, an antioxidant, a rust inhibitor, a metal passivator, a friction improver, an antifoam agent, an assistant and a pour-point depressant. The lubricant composition has the characteristics of favorable high-temperature oxidation stability, favorable rust resistance, favorable low-temperature fluidity, favorable acid neutralizing capacity, favorable shear resistance and lower ash content, inhibits the low-temperature oil sludge, paint film and carbon deposit from generation, and reduces the discharge of oxynitrides, soot, carbon monoxide and hydrocarbons.

Description

technical field [0001] The invention belongs to the field of engine lubricants, in particular to lubricant compositions for Miller cycle engines. Background technique [0002] How to use the energy generated by fuel more effectively is a key technology to improve engine efficiency. Since the birth of the internal combustion engine, the compression ratio is generally considered to be a constant value, but from the Atkinson cycle in the 19th century to the Miller cycle operation mechanism in the 20th century, it has broken through the shackles of constant compression ratio. If you want to improve engine power, increasing the compression ratio is a technical means; if you want to improve the fuel economy of the engine, you can also start with increasing the compression ratio. However, the actual compression ratio cannot be increased without limit. Therefore, in order to take into account low fuel consumption, high output and excellent drivability, the Miller engine uses an in...

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Problems solved by technology

However, the actual compression ratio cannot be increased without limit.

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