What is new technology variable displacement oil pump?

1

What is?

The oil pump oil can be varied according to the size of the displacement of the engine operating state.

2

what’s the use?

traditional fixed-displacement oil pump, oil displacement at low engine speeds the small, easily lead to insufficient lubrication, oil displacement is too high when he launched the high speed, resulting in a waste of power. A variable displacement hydraulic oil pump can be optimized according to the needs of the oil and the friction displacement demand, in order to achieve precise control of the lubrication system, while reducing the power loss of the oil pump.

3

Did you know?

· When working at low engine speeds, the oil pump displacement increases to meet the needs of engine lubrication to avoid wear and tear.

– high-speed operation, and reduced displacement oil pump displacement remains relatively constant, while meeting the needs of the engine lubrication, reduce power consumption, play a role in fuel economy.

4

Principle

variable displacement oil pump is generally variable displacement vane pump, vane pump can be divided into a sliding vane pump and a variable oscillating variables of formula vane pump. China mainly by adjusting the outer ring sliding, swinging, with the eccentric rotor pitch change, thereby changing the displacement of the vane pump. When the oil pressure reaches a set value, by adjusting the compression spring sliding or pivoting of the outer ring, so that the eccentricity between inner and outer blade pitch decreases, the pressure oil chamber is formed between the blade and the inner and outer rings in the oil pump during operation of the change amount is reduced accordingly, so that the oil pump flow rate is reduced. When the feedback oil pressure decreases, so that the return spring is gradually adjusting ring reset.