zwei inc hydraulic pump free sample

We offer a wide variety of hydraulic gear pumps, motors and service parts, both OEM (Original Equipment Manufacturer) as well as after-market. We stock original Parker and Casappa units and build custom solutions from parts. Additionally, we have established working relations with many distributors and manufacturers enabling us to quickly fill most every pump and motor need.

We specialize in the wholesale supply of “Made to Order” hydraulic gear pumps and motors. Using our fluid power library and master data base we are able to identify and quote a matching unit and get the customers machine back on the job.

We offer a wide variety of hydraulic gear pumps, motors and service parts, both OEM (Original Equipment Manufacturer) as well as after-market. We stock original Parker and Casappa units and build custom solutions from parts. Additionally, we have established working relations with many distributors and manufacturers enabling us to quickly fill most every pump and motor need.

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in Richtung des Pfeiles A angesaugt wird.The gear pump provided for conveying incompressible media comprises a housing 10 , through which two circular pump chambers 12 and 14 are formed. In these pump chambers, two helical wheels 16 and 18 are rotatably mounted in such a way that a narrow running distance is obtained between their tip circle and the surrounding housing wall. The spaces between the successive teeth of the two inclined wheels therefore, in cooperation with the surrounding housing wall, result in individual pump chambers through which, when the two inclined wheels 16 , 18 rotate in the direction of the arrows ω , an incompressible medium via a suction line connected to the housing 10 22 is sucked for conveyance into a pressure line 20 in the direction of arrow A.

Gleichung erfüllt:So that this promotion of an incompressible medium from the suction line 22 into the pressure line 20 takes place exclusively via the gaps that exist between the tip circles of the two helical gears 16 , 18 and the surrounding wall of the housing 10 , the two helical gears are provided with a degree of coverage greater than 1 and arranged so that the engagement of their teeth 24 and 26 results in a mutual sealing of the axially aligned mouths of the suction and pressure lines 22 , 20 . Because the degree of overlap maintained for the toothing of the two helical gears 16 , 18 is greater than 1, it can be assumed that at any time during the rotation of the two helical gears there are two active pressure points which, during the engagement of two teeth 24 , 26 when a particular one is specified Basic helix angle X b along the width F of the teeth result in the engagement plane 28 illustrated in FIG. 2. In this engaging plane 28 that is located in the end view of the two helical gears 16, 18 as line 28 A, are therefore constantly two pressure points similar to the pressure point 30 in the representation according to Fig. 1, and this engaging plane 28 is limited by two engaging planes which result from the chronological succession of these pressure points and whose mutual spacing is predetermined by the basic circumference division P b of the toothing of the two helical gears 16 , 18 . The engagement plane 28 delimited by these engagement lines on the other hand results in an effective tooth engagement length Z a , so that the geometry shown schematically in FIG. 4 is obtained for the tooth engagement of the two helical gears 16 , 18 . Here, a crossing line or a crossing point is obtained for the connecting plane or line of the wheel center points of the two helical wheels 16 , 18 and the engagement plane or line 28 or 28 A , which is on a tangential plane or a tangent to the rolling circle diameter of the two Helical gears 16, 18 lies. In order to maintain this geometry, which makes it unnecessary to form recesses R shown in dashed lines in FIG. 4 in two axial end walls provided for closing the pump housing 10 , the condition according to the following equation is fulfilled for the helical teeth of the two helical gears 16 , 18 :

TERRA  started in 2010 in the United Arab Emirates, with the aim to deliver innovative solutions for technology in the oil and gas and maritime sector. With our design engineering capabilities, all our products are custom-made to suit the needs of our customers for various products, such as ultra high-pressure pumps, chemical injection packages. We offer complete engineering solution including design, procurement, fabrication, assembly testing, commissioning. With our qualified team we provide after sales services through our Middle East head office for all types of products.

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