Fluid Power Priniciples and Hydraulic Pumps - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit I: Fluid Power Priniciples and Hydraulic Pumps
The radial piston pump has a number of radial pistons (in similar fashion to the spokes of a wheel) in a cylinder block which revolves around a stationary eccentric cam.
Fluid Power Priniciples and Hydraulic Pumps - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit I: Fluid Power Priniciples and Hydraulic Pumps
A typical 3D bent axis type axial piston pump is illustrated in Fig.4.17. The simplified line sketch of the same is shown in Fig.4.18.
Fluid Power Priniciples and Hydraulic Pumps - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit I: Fluid Power Priniciples and Hydraulic Pumps
In the axial piston pump, rotary shaft motion is converted to axial reciprocating motion which drives the piston.
Introduction, Classification
Subject and UNIT: Hydraulics and Pneumatics: Unit I: Fluid Power Priniciples and Hydraulic Pumps
In piston pumps, the pumping action is affected by a piston that moves in a reciprocating cycle through a cylinder.
Construction and Operation, Advantages and Disadvantages, Ranges
Subject and UNIT: Hydraulics and Pneumatics: Unit I: Fluid Power Priniciples and Hydraulic Pumps
Unlike in unbalanced vane pump, the balanced vane pump has two intake and two outlet ports which are diametrically opposite to each other.
Fluid Power Priniciples and Hydraulic Pumps - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit I: Fluid Power Priniciples and Hydraulic Pumps
The displacement of the vane pump depends on the eccentricity between the rotor and the housing, vane cross-sectional area and the rotational speed.
Construction and Operation
Subject and UNIT: Hydraulics and Pneumatics: Unit I: Fluid Power Priniciples and Hydraulic Pumps
In the fixed displacement pump, the rotor-housing eccentricity is constant. Hence the displacement volume is fixed. A constant volume of fluid is discharged during each revolution of the rotor.
Introduction, Types
Subject and UNIT: Hydraulics and Pneumatics: Unit I: Fluid Power Priniciples and Hydraulic Pumps
The major problem in gear pumps is that the significant amount of leakage occurs between the small gaps of teeth, and also between teeth and pump housing.
Introduction, Construction, Operation, Advantages, Range
Subject and UNIT: Hydraulics and Pneumatics: Unit I: Fluid Power Priniciples and Hydraulic Pumps
Screw pumps are one of the most reliable pumps for hydraulic applications. Especially these pumps are employed where quiet operation is essential.
Introduction, Construction, Operation
Subject and UNIT: Hydraulics and Pneumatics: Unit I: Fluid Power Priniciples and Hydraulic Pumps
In principle, the gerotor pump operates very much similar to internal gear pumps.
Introduction, Construction and Operation, Ranges, Advantages and Disadvantages
Subject and UNIT: Hydraulics and Pneumatics: Unit I: Fluid Power Priniciples and Hydraulic Pumps
In this pump, the gear wheels are replaced by propellers of two, three or four lobes.
Fluid Power Priniciples and Hydraulic Pumps - Hydraulics and Pneumatics
Subject and UNIT: Hydraulics and Pneumatics: Unit I: Fluid Power Priniciples and Hydraulic Pumps
The operation of internal gear pumps is very much similar to external gear pumps, but they are very efficient and produce less noise.