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Topic: Vacuum pump

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	Vacuum pump comprising an outlet - Patent 6948921
		The pump according to claim 3, wherein the outlet fitting is a plug-in screw fitting with a threaded section screwed into a casing of the vacuum pump.
		The pump according to claim 3 wherein the pump is a high-vacuum pump.
		In all instances, the connection for the connecting lines to the inlet or the outlet of the vacuum pump must be as leak-tight as possible so as to avoid the entry of leakage air or the ejection of detrimental gases.
	www.freepatentsonline.com /6948921.html (1507 words)

	Screw vacuum pump having valve controlled cooling chambers - Patent 6315535
		The vacuum pump set forth in claim 1 wherein the vacuum pump has a temperature sensor for detecting whether a temperature of the main housing becomes more than a predetermined value and a warning device for warning of the open degree of the flow valve based on a sensed signal of the temperature sensor.
		The vacuum pump may have a temperature sensor for detecting whether a temperature of the main housing becomes more than a predetermined value and may also have a warning device for warning of the open degree of the flow control valve based on a sensed signal of the temperature sensor.
		Since the dry vacuum pump has a structure based on the conventional one, the components same as those of the conventional one each have a reference numeral the same as one of the conventional one and are not discussed again.
	www.freepatentsonline.com /6315535.html (3157 words)

	How to Choose a Vacuum Pump for your Automotive Shop
		The main purpose of a vacuum pump is to remove air and moisture from your automobile air conditioning system.
		Venturi pumps are popular with the home mechanic crowd since they are cheap and easy to use.
		If you are using a vacuum pump on a passenger car up to 10 tons, a 1.2 cfm pump will work fine.
	www.ezinearticles.com /?How-to-Choose-a-Vacuum-Pump-for-your-Automotive-Shop&id=234812 (829 words)

	Dry Vacuum Pump Systems
		The suction gas into the inlet of pump is compressed by rotation of rotors and transferred to the peripheral gas passage in just the outside of the casing.
		The new dry vacuum is completely oil free type vacuum pump developed with a new concept which is different from conventional dry vacuum pumps.
		The mechanical booster is an auxiliary unit designed to improve the performance of high vacuum pumps, both in terms of increased capacity and reduced ultimate pressure.
	www.steriletech.com /dry-vacuum-pump-systems.htm (655 words)

	Mixing Using Vacuum Venturi
		Vaccon J series vacuum pumps, thanks to their robust, all metal construction and ability to ingest a variety of materials without experiencing damage, can be used as a mixing/proportioning device that eliminates mixing tanks and much of the manual labor associated with many mixing/proportioning processes.
		Using a J series pump as a mixing unit typically enables the user to eliminate the mixing tank and the cleaning that comes with it, as well as eliminate much of the manual aspect of the mixing operation.
		To use the J series pump as a mixing unit, the liquid that will be used in the smaller proportion is plumbed into the supply port of the pump – this liquid becomes the motive force used to “power” the J series pump.
	www.vacuumspares.com /vacuum_mixing.htm (637 words)

	Selecting a Vacuum Pump
		Vacuum pumps are often rated on the flow capacity which is stated as CFM (cubic feet per minute).
		If your vacuum press will be pulling down curved veneer forms or bent laminations, the general rule of thumb is that the pump must be three times faster.
		Vacuum pumps are also rated by their maximum achievable vacuum pressure at sea level which is often expressed as inches of mercury or "Hg".
	www.joewoodworker.com /veneering/vacuumpumps.htm (784 words)

	SMS Products - Vacuum Pump
		This small vacuum pump will draw enough vacuum (maximum vacuum 300 mbar) to extract pore water into suction lysimeters when the soil or porous matrix are relatively moist (matrix potential greater than -200 mbar).
		The battery and vacuum pump are enclosed in a strong container with a metal handle.
		The portable, battery powered pump is particularly suitable for intermittent pore water collection, or where suction lysimeters are widely dispersed in the field.
	www.soilmeasurement.com /vacpump.html (308 words)

	gmcmotorhome.com - Supplemental Vacuum Pump
		It is a good idea to test the pumps at the wrecking yard to be sure they run and pump and then check them at home to make sure they hold the vacuum and operate at the correct pressure.
		The better method is to use the booster pump as it was in the original application and installed between the motor and the brake booster.
		A side benefit of the pump is that if your brake booster has developed a leak, the pump will run all of the time to make you aware of a problem before an emergency occurs.
	users.california.com /~eagle/figs/vacpump/vac.html (803 words)

	Vacuum Pumps - Vacuum Pump Manufacturers - Vacuum Pump Suppliers
		Vacuum pumps are used for vacuum distillation and the processing of food and in devices such as vacuum tubes, vacuum bottles, barometers and research equipment.
		Cryogenic pumps, also called “cryopumps,”; are gas binding vacuum pumps that work by the condensation and/or sorption of gas at surfaces maintained at temperatures, kept low enough through refrigeration, for the vapor pressures of the condensed gases to be insignificant.
		Liquid ring vacuum pumps, used in many industries for the evacuation of both dry and wet gases, have the capability to deal with condensable vapors or even small slugs of liquid entrained in the incoming gas.
	www.iqsdirectory.com /vacuum-pumps (3330 words)

	Vacuum Pump
		Because the hummer need vacuum to run certain accessories there is a vacuum pump mounted on the engine behind the alternator to supply vacuum.
		The vacuum pump line runs from the pump which is below the alternator on the passenger side of the truck to the top of the engine where it meets up with the waste gate.
		A vacuum line runs from there to the firewall where is goes to all the HVAC door motors.
	www.flashoffroad.com /Diesel/VacuumPump/vacuumPump.htm (672 words)

	The Pros and Cons of Racing Vacuum Pumps
		The general pump design is very sound they've proven themselves to be efficient and durable thanks to their heavy duty bearings and high airflow potential, they just need some modifications on the inside to make them compatible with oil.
		The blowby was increasing disproportionately to the amount of vacuum the pump was able to pull and it showed up as less vacuum on his vacuum gauge downtrack.
		For pumps that are operated at a lower rpm than a race car, such as street use, or other applications that would have extended low RPM periods, we now offer a street kit that recirculates oil through the pump greatly reducing the time for rebuilds.
	www.dragstuff.com /techarticles/vacuum-pumps.html (3904 words)

	Vacuum Pump
		The system uses a vacuum pump to provide a strong skimming capability, and a compressor pump to provide discharge and transfer capabilities to a temporary or permanent containment area.
		The unit uses the positive and negative air pressures developed by a rotary screw vacuum pump and a rotary screw air compressor to draw in and discharge water, oil, emulsions, and debris in a spill response scenario.
		The unit uses the positive and negative air pressures developed by two rotary vane type vacuum pumps to draw in and discharge water, oil, emulsions, and debris in a spill response scenario.
	www.essmnavy.net /vacuum.htm (902 words)

	Vacuum pump - Wikipedia, the free encyclopedia
		Entrapment pumps may be cryopumps, which use cold temperatures to condense gases to a solid or absorbed state, chemical pumps, which react with gases to produce a solid residue, or ionization pumps, which use strong electrical fields to ionize gases and propel the ions into a solid substrate.
		Achieving truly high vacuum is difficult because all of the materials exposed to the vacuum must be carefully evaluated for their outgassing and vapor pressure properties.
		The vacuum pump was invented by Otto von Guericke.
	en.wikipedia.org /wiki/Vacuum_pump (2360 words)

	Vacuum Pump Service (Site not responding. Last check: )
		Pumps are serviced in accordance with manufacturer's specifications and Allometrics procedure QWI-19-29, "Servicing of Vacuum Pumps".
		Pumps may be set up on a scheduled preventive maintenance program where service is performed on site at least once per year or may be delivered to our service shop for general repairs.
		Pumps that are shipped via UPS or motor freight should be packed in a wooden box.
	www.allometrics.com /pump_serv.htm (221 words)

	Vacuuum Pump
		The piston-type vacuum pump was invented by Otto von Guericke (1602-1686) in the course of a
		Eventually, he developed a pump which removed the air directly from the vessel, using air as the working fluid for the pump in place of the water formerly thought to be necessary.
		The vacuum pump at the left is at Depauw University in Greencastle, Indiana.
	physics.kenyon.edu /EarlyApparatus/Pneumatics/Vacuum_Pump/Vacuuum_Pump.html (1589 words)

	Milking Management III - The Vacuum Pump Milking System
		The vacuum pump needs to be able to remove air at least as fast as it is let in during milking (air usage) in order to help keep the vacuum level constant.
		The vacuum pump removes air from the system at a constant rate, but air is used at a highly variable rate in the milking operation.
		If a large 20 HP vacuum pump has a great distance between the pump and the controller, it might be wise to move the controller closer to the pump.
	edis.ifas.ufl.edu /DS098 (7170 words)

	Vacuum Laminating Technology Inc. - Vacuum Pump Products
		The VLT 50 and the VLT 100 are regulated rotary vane vacuum pumps.
		We use large, easy-to-read vacuum gauges, large diameter hoses, brass fittings and high-end precision check valves so the flow of air through the pumps internal plumbing is not restricted in any way.
		Model VP 5 and VP 10 are unregulated vacuum pumps where control of working pressure is not necessary or a continuous vacuum source is needed.
	www.vacuum-press.com /pumps.html (342 words)

	Racing Vacuum Pump Application Guide and FAQ (Site not responding. Last check: )
		Vacuum pumps can be rated by their ability to flow air, the more air a vacuum pump flows the more vacuum it will make on a given engine.
		A "small" vacuum pump, that is making inadequate but almost adequate vacuum on an engine may be made to act like a "larger" vacuum pump by increasing the rotational speed, or RPM, of the pump.
		It is common to see the vacuum increase to a maximum and then reduce some at max RPM if the vacuum pump is not rated for enough airflow to maintain a net vacuum throughout the RPM range.
	www.gzmotorsports.com /vacuum-pump-guide.html (1757 words)

	Rotary Vane Mechanical Pump Notes (Site not responding. Last check: )
		Rotary vane pumps are the basic workhorses for the majority of vacuum installations.
		The vacuum range covered by a two stage vane pump fits many requirements in general vacuum work and in thin film deposition coaters using a low pressure process gas.
		Pumps listed for chemical, corrosive, or plasma conditions are constructed from more resistant materials than the normal non-corrosive gas pumps.
	www.lesker.com /newweb/Vacuum_Pumps/Individual_Pumps/Mechanical_Pumps/RotaryVane_TechNotes.cfm (550 words)

	vacuum — FactMonster.com
		A common but incorrect belief is that a vacuum causes “suction.” Actually the apparent suction caused by a vacuum is the pressure of the atmosphere tending to rush in and fill the unoccupied space.
		In the rotary oil-sealed pump a rotor turning in a cylinder allows gas to enter through an inlet valve from a space to be evacuated and then pushes it through an outlet valve into the atmosphere.
		An ion pump consists of a chamber containing a source of electrons that are used to bombard gas molecules from a container to be evacuated.
	www.factmonster.com /ce6/sci/A0850304.html (467 words)

	Reading on Vacuum II
		To create a vacuum in a system it is necessary to move all of the molecules of gas out of the system.
		The pump which creates the vacuum in the certain system is called a vacuum pump.
		The transfer pumps are also called kinetic pumps since they impart the momentum to the gas which is being pushed in a such a way that the gas is transferred continuously from the inlet of the pump to the outlet.
	acept.la.asu.edu /PiN/rdg/vacuum/vacuum2.html (620 words)

	Vacuum Pump Oil \| Rocky Mount Vacuum Technology
		However, they hinder the performance of the vacuum pump by absorbing moisture, raising vapor pressure and reacting to process gases to form sludge.
		Starting, Stopping Pumps: The common practice of stopping the pump after every process run is one of the most detrimental things you can do to a vacuum pump.
		The pump is then shut off allowing everything to condense in the pump and contaminate the oil.
	rmtechva.com /vacuum_pump_oil.htm (464 words)

	What is a Vacuum Pump?
		Although the vacuum pump was born into the arms of the scientific community, as the centuries passed and humanity progressed through the Industrial Age, it evolved to fulfill a more practical role.
		The compressed air pump, also called the generator, uses the principles set forth by the well-known physicist Daniel Bernoulli, wherby compressed air that is forced through a nozzle creates a vacuum when it interacts with high-pressure outside air.
		Not only is the vacuum pump used in the processing of semiconductors, the amenities that come with most of the high-priced vehicles of today--including power brakes and cruise control--run off of power created by a vacuum pump.
	www.wisegeek.com /what-is-a-vacuum-pump.htm (496 words)

	Vacuum Pump
		Connect the vacuum manifold, microarray robot dry station, filtration apparatus, or any other device of interest by inserting a length of 1/4” (6.4 mm) rigid vacuum tubing into the quick connect port on the front of the instrument.
		Vacuum pressure is initiated by powering on the Vacuum Pump using the red power switch on the front of the unit.
		The vacuum pump performs well across a wide range of ambient temperatures and relative humidity and is compatible with class 100 cleanrooms.
	arrayit.com /Products/MicroarrayI/Vacuum_Products/Vacuum_Pump/vacuum_pump.html (1036 words)

	BUCHI Laboratory Equipment - Oil Free Diaphragm Vacuum Pump V-700
		The Vacuum Pump V-700 is a chemically resistant and totally oil free PTFE diaphragm pump designed for the use with all gases and vapours typically associated with the laboratory.
		With a flow rate of 1.8 cubic meter/h and an ultimate vacuum of below 10 mbar, it covers a wide range of classical laboratory applications and is optimally suited for work with a rotary evaporator.
		The Vacuum Pump V-700 can be ideally extended to a small laboratory system in a modular fashion.
	www.buchi.com /diaphragm-vacuum-pump.4697.0.html (219 words)

	World Compressors and Vacuum Pump Markets
		Compressors and vacuum pumps are sophisticated devices, utilized as a source of energy and to alter atmospheric states to create specific environments for various systems.
		Currently affected by the economic deceleration, the rotary vacuum pump sector is expected to experience a strong rise in revenues due to renewed growth within the semiconductor industry.
		"According to the majority of vacuum pump manufacturers, demand is likely to increase in the long term as semiconductor applications multiply, technology improves, and the cost of manufacturing materials diminishes," says the author.
	www.marketresearch.com /researchindex/710375.html (461 words)

	Vacuum Laminating Technology Inc. - Accessories
		The Vacuum Clamp connects to the vacuum pump or generator and provides a quick way to clamp flat panels in any shape and size to your workbench or to other surfaces.
		If the clamp is used with our regulated vacuum pumps we recommend adding our portable vacuum tank (VT 10) to the system to prevent frequent cycling of the pump.
		The use of bag manifolds allows the operation of two or three bags or Vacuum Frame Presses with one pump or vacuum generator.
	www.vacuum-press.com /access.html (269 words)

	Building your own Vacuum pump
		As more and more vacuum is applied to the inlet of the valve, the iron wire moves back releasing pression on the micro switch.
		As more and more vacuum is applied to the inlet of the syringe, the piston moves up releasing pression on the micro switch.
		Due to unavoidable leaks, the vacuum will lower little by little and the piston will come back due to the load in the basket pushing the microswitch ON, and starting the compressor unit for a new cycle.
	www.dream-models.com /eco/vacuumpump.html (1655 words)

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