How to make a vacuum pump with your own hands. 3 variants of execution in detail

Vacuum pumps have become widespread in industry, and in everyday life we sometimes need to pump out air or a non-corrosive liquid. However, we don’t use pumping as often as we use pumping, so rather expensive factory models are not always cost-effective. Therefore, you can use what is always on hand, and from an ordinary pump is quite possible to make a vacuum. It does not require any special skills and abilities, you just need to imagine the principle of the product.

To deflate it you can use an ordinary pump. a car pump or a bicycle pump. The easiest thing to use is exactly

A foot pump will also work, but it will be more difficult to use because the remodeled pump will work like a piston in a syringe. And if it will be convenient to pull the handle of the manual one with your hands, the pedal of the foot pump will probably not rise with one spring and you will have to stretch it manually as well. By the way, if you need to evacuate air from a small volume, the pump can also replace a large syringe. Disassemble the hand pump and find the cuff in it, turn it the other way around and reassemble the pump in the reverse order. Thus, the inverted cuff ensures that the air is drawn in like a piston in a syringe. This method is good if you do not want to create a deep vacuum.

A foot-operated pump will also work, but it will be more difficult to use, because the converted pump will work on the principle of a piston in a syringe. And if the handle of the manual you will be comfortable to pull with your hands, the pedal of the foot pump may no longer lift with one spring, and you will also have to stretch it by hand.

You will need a check valve to further convert the pump to pump air out. It must be installed between the pump and the hose. All joints of the parts must be carefully insulated to prevent air from getting in. Use adhesive, silicone, or other insulating material for insulation. Be careful not to let any liquid materials get inside the pump parts and harden there, as this will significantly reduce the efficiency of the pump.

To further convert the pump to pump air, you will need a check valve. It must be installed between the pump and the hose.

Making a vacuum pump with your own hands will help you save a few thousand. This work does not take you much time, does not require any special skills and can be made from almost improvised materials. On the Internet there are many options for making hand pumps for pumping air and liquid, the efficiency of which reaches 80%.

Vacuum pumps are designed to remove air and gases from large volumes, and in the home have found application relatively recently. They can be used to store food and things in vacuum packs, pickle meat products, evacuate gas and steam, as well as liquid. Such an interesting mechanism can be bought, although it is quite expensive, or you can make it yourself. Let’s consider the second option. how to make a vacuum pump with your own hands.

Audi 80 2.0D CN QUATTRO Gecko 1992 on DRIVE2

The diesel engine, unlike the gasoline engine, has no vacuum (or rather it is there, but very small and not constant) in the intake manifold due to the lack of throttle valve. In this connection I had a problem. where to get vacuum for vacuum brake booster On 4-cylinder diesels VAG is a mechanical vacuum pump on that place where petrol engine has a distributor.

The 5 cylinder diesels were only installed on Audi 100 c2, c3, c4, A6 c4 the c4 had a mechanical vacuum pump on the cylinder head and was driven by the camshaft through a pusher, much like my petrol NG.

The 100 c3 has a tricky system that includes a “pump” and a booster pump.

on the 100 c2 there is a separate pump driven by the camshaft through a belt.

None of the above systems suited me for one reason or another, so I had to go the other way, namely to install an electric vacuum pump.

To find this pump is not easy because most sellers and scrap yards do not understand what it is, what it is for and where it is worth and those who do know, pay out huge sums But I managed to find it for the right price (for him) and even with Audi))).Although first the seller sent me a hydraulic pump from ABS)) Such pumps are installed and installed on many cars and not only VAGI bought it a year ago and for a new part ranged from 3000 to 20000grn.why the difference?. because it all depends on what kind of car you drive, if it is a VW then you have a pump for 3000grn., and if Bentley, sorry 20000 )))). although the parts are practically the same.

Works with me all this stuff when you press the brake pedal regardless of whether the ignition is on or off. On the tube connecting the pump with the brake booster left reverse valve which allows you to save a little longer vacuum inside.

check valve, presence is mandatory

I hooked everything up the right way wires, relay, connector for a relay, fuse. all taken from the spare wiring and only “stop light switch” was purchased from VAZ-2108. in the future I will change it for Audushny as I think he will be more reliable! Connector on the pump replaced by the detonation sensor connector.

made my own connector took it from an old detonation sensor

Pump mount under the hood frankly kolhozil, on the serviceability of it does not affect, but for aesthetic appearance in the future all change and the place of its location, too.

Costs:- Electric vacuum pump brake system VW Audi 8E0 927 317A. 950grn. (as of July 14). wiring, relay, relay connector, fuse. ponaschbyl by hoes). brake light switch VAZ-2108 (frog). 35 uah.

Retrofitting a lip pump

Make a vacuum pump for pumping air with your own hands can be from any collar device. Even bicycle devices are suitable for this purpose. Of course, it is better to take a car pump, because with its improvement will be much less trouble.

make, vacuum, pump, compressor

Step-by-step instructions for making:

  • Unscrew the car device.
  • Remove the collar and flip it the other way around.
  • Assemble the device in reverse order. The difference is that the collar is reversed.
  • At the inlet to the pump, where the hose with which the air is pumped out, screw the check valve. The latter should function by passing a flow of air from the vessel to the appliance. There should be no movement of the air mass in the opposite direction. Check valve can be purchased separately or taken from an aquarium compressor. Directly before installation it is necessary to blow into it. Screw the side that will not let in air to the pump and the other side to the tube. It should be noted that the device is quite enough to meet the needs in the home, but for the creation of a deep vacuum it will not be suitable due to low power.

Converting a rotary lobe pump

A vacuum pump is used for the domestic evacuation of gases, steam and liquids, to restore the tightness of household appliances. And also in split systems of air conditioners and in operation of braking systems in vehicles.

Any rotary lip pump will do for this conversion and can even be used on a bicycle. However it is still preferable the automotive one, because there will be less trouble with its conversion.

The sequence of steps to upgrade with your own hands looks like this:

  • The car pump is unscrewed.
  • Remove the collar and turn it the other way round.
  • Further the device is assembled, the only difference is that the collar is turned in the opposite direction.
  • At the pump inlet, where the hose, through which air will be pumped out, is screwed, screw the check valve. The valve should work, allowing air to flow from the tank to the device, but not back. It can be bought or removed from an aquarium compressor. Blow into it before installing it. The side that does not let air in is screwed to the pump, the other side is screwed to the tube.

The power of such a mechanism will not be enough to obtain deep vacuum conditions, however, for domestic needs will be quite enough.

Checking the function

This operation is necessary so that the master could make sure that all nodes, which will be used in the manufacture of homemade compressor equipment on the basis of the refrigerator, intact, and kept their performance.

Checking the compressor

Before performing this operation, it is necessary to drain the old oil, flush the refrigerator compressor, and pour in fresh oil. Only oil specifically designed for use in refrigerator-based compressors may be used. Otherwise the assembly will quickly fail.

There are three brass tubes on it, the third one is usually sealed. To remove the waste, remove the sealed tip, and drain it. Washing fluid and fresh oil is poured through it. The drain tube must be sealed after the oil fill is complete.

When the oil change is complete, the previously removed relay must be reinstalled. Take a piece of electrical cord with a socket and connect its free end to the wires coming out of the relay.

After that it is possible to switch on the compressor from the refrigerator into the electric network, as a result, the motor will come into motion and the gas flow will start moving along the tubes, along which the refrigerant used to move. It is expedient to note pipes, i.e. that through which air enters the compressor and that through which it leaves.

Checking the air reservoir

For making a homemade compressor, you can use the tank for storing compressed gas as a chamber from an automobile tire. To check its tightness it is enough to pump it up and put into the reservoir with water. If there are holes or other damages, it is likely that air will escape through them, and it is advisable to seal the detected defects with rubber patches.

Making a vacuum pump using a compressor

A small vacuum pump for evacuating air won’t do the trick. To create a higher vacuum or pump out larger amounts of air, you can use an electric pump. To make it, you need any household compressor.

There is not much work to be done: the tube with which the air is sucked is attached to the appliance inlet (before this it is necessary to remove the filter). After the tube is connected, you can turn on the compressor.

make, vacuum, pump, compressor

When filling the tank with liquids or high moisture products, the air that is pumped out will contain large quantities of water vapor. In these conditions, the compressor can not work long. In order not to break the compressor in the system should be an additional drying package, which has a receiver and sump.

How to build vacuum pumps with your own hands?

Vacuum pumps were originally created for industrial use. Bulky, high-powered and technically complex units were built in factories and plants and were priced at a staggering price.

Exploded car pump, ready to be rebuilt into a vacuum unit

Nowadays vacuum models are also used in households. And although they are much cheaper than their industrial versions, the purchase of vacuum pumps is still a problem. Fortunately, it is always possible to make a vacuum pump with your own hands, without losing the quality of the created device.

First we need to assemble the valve from a plastic plug of ø 50 mm. Choose a pair (screw-nut) and according to the diameter of the first in the center drill a hole. Then around it we make a few holes of ø 5-6 mm.

From a piece of rubber with a thickness of 3-4 mm is cut out the gasket, which should freely enter the inside of the plug. It must cover all holes. A hole is made in the center of the gasket, and it is pressed to the plug with a screw and nut.

The pump sleeve is assembled from sewage pipes with a diameter of 50 mm. It must be equal to the depth of the well. You need to cut the pipe only from the narrow end. On the side of the bell a plug-valve is inserted. For security, it is mounted on both sides on self-tapping screws. For the narrow end a blind plug is prepared with a hole in the center of ø 25 mm. A rod will be inserted into it and the part acts as a sliding support.

Sewage pipe pump Source

The self-made pump must have a piston. The rod is made of ø 24 mm tube, and it must be half a meter longer than the sleeve. You’ll need an empty silicone bottle with a cutoff spout. And the hole is enlarged so that the rod can go through it. The can is cut in half. Diameter parts must fit snugly to the sleeve.

At the end of the rod threads are cut, on which the nut with a gasket is screwed. Next, half of the cylinder is put on. It is tightly fixed with another nut and gasket. After that the stem is inserted into the sleeve. On the last one put a plug, which will be a support for sliding and fixed top of the sleeve.

During operation, the water will rush up the stem, which slides tightly on the sleeve, thanks to a can of silicone. Therefore, for convenience, a tee is mounted on the end. On one side is screwed a plastic branch with an angle on the end. The water will come out of it. On the other side of the tee is screwed plug in the form of an ordinary handle.

Hand-operated vacuum pump made of plastic Source

With a side spout

If you put a tee with a 35° elbow on top of the thermowell, the water will flow through this part. But to do this, it is necessary to make several holes in the piston rod, near the piston itself. So you can get water in the inner part of the thermowell. When drilling out the piston rod it is necessary to try to keep the strength of the structure. Therefore, it is better to arrange the holes in a spiral.

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