K5V pump

The K5V pump is a type of hydraulic variable - displacement piston pump in the Seiki series of Kawasaki Heavy Industries. Here is an introduction to it:

Basic overview

1. Definition and type: It belongs to the axial - piston variable - displacement pump with a swash - plate structure. The K5V series includes models such as K5V80, K5V140, K5V160, and K5V200.

2. Structural composition: It consists of components such as the pump body and controller. The pump body includes a swash - plate, return plate, oil - distribution plate, cylinder block, transmission shaft, plunger, and sliding shoes. The controller is a servo - variable adjustment mechanism composed of components such as flow regulation, pressure regulation, power regulation, proportional solenoid valve, variable plunger, and spring.

Technical features

1. Variable adjustment mechanism: It has various control modes such as electric proportional displacement control, constant - power control, and pressure - cut - off control, which can adapt to different working conditions of the host machine.

2. High specific power: Thanks to new technologies, it has a higher specific power, being capable of outputting a larger flow or pressure at the same power.

3. Large displacement and high reliability: While maintaining the same external installation dimensions and regulator variations as the K3V series, it has a larger displacement, higher reliability, and a longer service life.

Working principle

The drive shaft rotates the cylinder block. The swash - plate, connected to the plungers through sliding shoes, causes the plungers to reciprocate in the cylinder bores as the cylinder block rotates. The reciprocating motion of the plungers sucks and discharges oil. By adjusting the angle of the swash - plate, the stroke of the plungers changes, thus changing the displacement of the pump. In addition, the external gear pump in the K5V series provides pilot - control oil and auxiliary - control oil pressure for the main pump.

Application scenarios

K5V pump is widely used in construction machinery such as excavators, concrete pump trucks, and cranes. It is also used in industries such as metallurgy, mining, and ships that require high - pressure hydraulic systems.

Kawasaki K5V pumps

Swash K5V pumps