山东OIL PUMP

The Group has more than 60 years of PM production experience, and produces a large number of oil pump parts every year. The first production is the internal and external rotors of the oil pump on motorcycles. The following is the development history of the Group's oil pump production

1994 Mass production of inner and outer rotors of motorcycle oil pump

Mass production of oil pump gears in 1995

Mass production of internal and external rotors of automobile oil pumps in 1997

1998 Mass production of stator rotor port plate of hydraulic power steering pump

In 2006, mass production of sliding sleeve of variable displacement oil pump rotor and internal and external rotors of gearbox oil pump

Volume production of internal and external rotors of gasoline fuel pump in 2008

Mass production of automobile gear variable displacement pump gear in 2012

In 2013, mass production of sliding sleeve of variable displacement pump rotor of automobile vane type, double acting vane pump rotor and stator of gearbox

Mass production of oil distribution tray

Establish a 200 mu powder metallurgy production base in Lianyungang, and set up an independent production line for the pump body powder metallurgy parts with large output

Characteristics of powder metallurgy rotor pump in engine

1. The cycloidal internal and external rotor pump has few parts, low noise, high speed and smooth movement, but the flow pulsation is large when the number of teeth is small

Large leakage at engagement and low pressure.

2. The height tolerance of rotor products is 0.008, parallelism is 0.008, flatness is 0.005, and the process of double-sided grinding equipment

High capability requirements.

3. The cleanliness reaches a high level, and the particle size is less than 600um.

Characteristics of powder metallurgy rotor pump in gearbox

1. The pressure of the involute internal gear pump is higher than that of the cycloidal type, with low noise and high efficiency (up to 90%).

2. The tooth profile of the rotor reaches 0.04, the product height tolerance is 0.008, the parallelism is 0.008, and the flatness is 0.005,

The process capability of the double-sided grinding equipment is required to be high.

3. The cleanliness reaches a high level, and the particle size is less than 600um.