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Diagram of a rotary screw compressor

In an oil-flooded rotary screw compressor, oil is injected into the compression cavities to aid sealing and provide cooling sink for the gas charge. The oil is separated from the discharge stream, then cooled, filtered and recycled. It is usual for some entrained compressor oil to carry over into the compressed gas stream. In some applications, this is rectified by coalescer/ filter vessels. Standard oil-flooded compressors are capable of achieving output pressures over 200 psig, and output volumes of over 1500 cubic feet per minute (measured at 60 °C and atmospheric pressure). In an oil-free compressor, the air is compressed entirely through the action of the screws, without the assistance of an oil seal. They usually have lower maximum discharge pressure capability as a result. However, multi-stage oil-free compressors, where the air is compressed by several sets of screws, can achieve pressures of over 150 psig, and output volume of over 2000 cubic feet per minute (measured at 60 °C and atmospheric pressure). Oil-free compressors are used in applications where entrained oil carry-over is not acceptable, such as medicial research and semiconductor manufacturing.

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Kaela Mohr

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3y ago

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How does a screw jack work to lift heavy loads?

A screw jack works by using a threaded screw to lift heavy loads. When the screw is turned, it moves up or down, causing the jack to raise or lower the load. The mechanical advantage of the screw thread allows for the lifting of heavy objects with less effort.


What is mechanical advantage of screw Jack?

You divide the pitch of the jack's screw into a length equal to the distance traveled by the end of the Jack's lever around the circumference of a circle having a radius equal to the jack's lever. Elliott


Which of three classe of lever is a screw car jack under?

If you wrap an inclined plane around a small circle what you will end up with is a screw jack


Why is jack screw provided with a long arm?

moment of force (torque) i.e. the turning effect of a body(here,screw jack)= force applied X perpendicular distance of force from the axis of rotation. so in order to produce maximum turning effect of the screw jack by a force, the force is applied at a point on the body for which the distance from the axis is maximum so that the given force provides maximum torque to turn the screw jack. Thus,the screw jack is provided with a long arm.


What are the sources of error in case of screw jack?

Some potential sources of error in a screw jack include friction in the threads, misalignment of the components, deformation of the screw or load, and inaccurate torque measurement. These errors can affect the efficiency and precision of the screw jack's lifting capabilities. Regular maintenance and calibration can help reduce these errors.

Related Questions

What is the principle of screw?

A screw gauge works on the principle of screw. This screw principle helps to convert smaller distances into larger ones by measuring the rotation of the screw. It amplifies the smaller dimensions and this converts into larger ones. When we rotate the screw, there's a linear movement of the main scale.


How screw Jack works?

A screw jack is just that, a big screw in a base. As the screw is screwed out, it raises whatever it is under. A scissor jack that is in most new cars uses a screw to pull the jack together which causes it to raise up.


What is the principle of screw gauge?

A screw gauge works on the principle of screw. This screw principle helps to convert smaller distances into larger ones by measuring the rotation of the screw. It amplifies the smaller dimensions and this converts into larger ones. When we rotate the screw, there's a linear movement of the main scale.


How does a screw jack work to lift heavy loads?

A screw jack works by using a threaded screw to lift heavy loads. When the screw is turned, it moves up or down, causing the jack to raise or lower the load. The mechanical advantage of the screw thread allows for the lifting of heavy objects with less effort.


What is manufacturing process for compound screw jack?

Tak up a screw & jack then i will be a screw jack ahahahah


How is the effort applied in the screw jack?

The effort is applied in the screw jack by turning the head of the screw. This then turns the jack a certain amount according to the pitch.


How motorized screw jack works?

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Can you use a screw Jack electrically?

Yes, a screw Jack Can be operated by electrically or manually.


What is mechanical advantage of screw Jack?

You divide the pitch of the jack's screw into a length equal to the distance traveled by the end of the Jack's lever around the circumference of a circle having a radius equal to the jack's lever. Elliott


Do you fill Jack oil into the screw on the side of floor jack?

Take top cover off of jack and there should be a rubber plug or a single screw that you take out to fill jack .


What are the uses in construction for a ball screw jack?

There are several uses for a balll screw jack. Ball screw jack assemblies use small balls to roll between the nut and the lifting ball screw. It creates less friction and increases use life.


Is a screwdriver a lever yes or no?

A lever works on the principle of using torque. A screw driver is used as a lever because the relatively broader handle produces much more torque for the same force as compared to the narrower blade of the screw driver.