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Topic: Variable displacement

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	Variable-Displacement Pump :: Blocks (SimHydraulics)
		By the pump maximum displacement and stroke — The displacement is assumed to be linearly dependent on the control member position.
		By table-specified relationship between the control member position and pump displacement — The displacement is determined by one-dimensional table lookup based on the control member position.
		The displacement is assumed to be linearly dependent on the control member position.
	www.mathworks.co.uk /access/helpdesk/help/toolbox/physmod/hydro/ref/variabledisplacementpump.html (862 words)

	Encyclopedia :: encyclopedia : Variable (Site not responding. Last check: 2007-10-14)
		Variables are useful in mathematics and computer programming because they allow instructions to be specified in a general way.
		In general, a variable binds an object to a name so that the object could be accessed later, much like a person has a name and people could refer to him by that name.
		Usually, a variable is set to reside in some scope in program code, and entrance and leave of the scope coincides with the beginning and ending of a variable life, respectively.
	www.hallencyclopedia.com /Variable (2085 words)

	Variable displacement - Wikipedia, the free encyclopedia
		Variable displacement is an automobile engine technology that allows the engine displacement to change for improved fuel economy.
		Most variable displacement systems work by turning off a bank of cylinders in a V engine, but the initial systems worked differently.
		Other systems appeared in 2005 from GM (Displacement on Demand in the Generation IV small-block) and Honda (Variable Cylinder Management on the J family engines).
	en.wikipedia.org /wiki/Variable_displacement (215 words)

	Variable displacement pump - Wikipedia, the free encyclopedia
		A variable displacement pump is a device that converts mechanical energy to hydraulic (fluid) energy.
		The displacement can be adjusted to increase or decrease the amount of fluid pumped.
		A common variable displacement pump used in vehicle technology is the axial piston pump.
	en.wikipedia.org /wiki/Variable_displacement_pump (280 words)

	Displacement, Location, or Position Sensors - Tutorial - Developer Zone - National Instruments
		A potentiometric displacement sensor is to be used to measure work-piece motion from 0 to 10 cm.
		The class of variable-reluctance displacement sensors differs from the inductive in that a moving core is used to vary the magnetic flux coupling between two or more coils, rather than changing an individual inductance.
		The output is thus a dc voltage whose amplitude relates the extent of the displacement, and the polarity indicates the direction of the displacement.
	zone.ni.com /devzone/conceptd.nsf/webmain/E0323D0E70085C6B8625680F005CAC2D?opendocument&node=dz00000_us (1731 words)

	DENSO Automotive OEM Products
		The externally controlled type variable displacement compressor changes the swash plate angle in accordance with an electrical signal from an electric control unit.
		DENSO’s externally controlled variable displacement compressor manages displacement by controlling refrigerant differential pressure before and after a throttle at the discharge side; achieving precise cooling capability control in accordance with cabin environment and driving conditions.
		In 2001, DENSO launched the world’s first externally controlled variable displacement compressor with an electromagnetic control valve that controls refrigerant differential pressure before and after a throttle at the discharge side, in accordance with an electric signal from the engine ECU or air conditioner ECU.
	www.globaldensoproducts.com /cc/cacs/c/ecvd_compressor.html (441 words)

	Hydraulic pumps - part 2
		Variable displacement pumps tend to be somewhat larger and heavier, because they have added internal controls, such as handwheel, electric motor, hydraulic cylinder, servo, and mechanical stem.
		In these pumps, displacement is determined by the size and number of pistons as well as their stroke length, which varies with the swashplate angle.
		In variable displacement models of the inline pump, the swashplate swings in a movable yoke.
	www.hydraulicspneumatics.com /200/TechZone/HydraulicPumpsM/Article/True/6402/TechZone-HydraulicPumpsM (1773 words)

	Overview of the lever arm system:
		The displacement x1 is the input and the force F is the output response.
		As the final variable we choose the velocity v2 of the lever arm for the friction coefficient of the damper.
		The design variable is the moment inertia J. The output force F depends on the moment inertia J. Therefore, we can adjust the variable force F for the results that we expect.
	claymore.engineer.gvsu.edu /~nguyenc/re345w.html (1198 words)

	Example lab report
		In a typical prism adaptation experiment, the displacement caused by the prisms is the same from trial to trial, allowing the brain to recalibrate the visual consequences of a movement.
		The results for the variable displacement group show no reduction in pointing error with practice, indicating that participants in this condition were unable to adjust to the prisms.
		Finally, the aftereffect for the consistent displacement condition (-1.22) was larger than the aftereffect shown for the variable displacement condition (-.48), another indication that only the consistent displacement participants adapted to the prisms.
	www.ahs.uwaterloo.ca /~allard/example.htm (1033 words)

	Transmission (mechanics) - tScholars.com (Site not responding. Last check: 2007-10-14)
		Engines typically operate over a range of 600 to about 6000 revolutions per minute (though this varies from design to design and is typically less for diesel engines), while the car's wheels rotate between 0 rpm and around 2500 rpm.
		The continuously variable transmission allows the relationship between the speed of the engine and the speed of the wheels to be varied constantly.
		One half of the transmission is a variable displacement pump and the other half is a hydraulic motor.
	www.tscholars.com /encyclopedia/Transmission_(mechanics) (1734 words)

	Hydraulic Pumps from Continental Hydraulics - Page 2
		This is a variable displacement, pressure compensated vane pump delivering 11.36 gpm @ 1750 rpm @ rated pressure.
		This is a variable displacement, pressure compensated vane pump delivering 15.15 gpm @ 1750 rpm @ rated pressure.
		This is a variable displacement, pressure compensated vane pump delivering 20.83 gpm @ 1750 rpm @ rated pressure.
	www.flo-products.com /floprod/pumps0.html (737 words)

	Halfbakery: Fully Baked Engine!
		New for the 2007 model year, the Medusa (r) is a turbocharged, scavenged, turbocompounded, Stage II adiabatic two-cylinder, two-stroke, plasma-fired, variable compression ratio,variable displacement, variable timing, direct-injected, hybridized heat-conserving engine that is fully warmed up within ten seconds of starting after a full eight hours of shutdown.
		Displacement is anywhere from one to eight liters depending on power demands, and compression ratio is from 8.0 to 15.2:1.
		The other items are also fully baked: variable displacement, timing, hybridization, etc. The point, which you missed [suction], an enormous amount of development has been done on individual systems, and some are implemented along with others, but so far no company has thought to try to combine all the technologies and see what happens.
	www.halfbakery.com /lr/idea/Fully_20Baked_20Engine! (758 words)

	Turck Transducers Distributors EZ-Track Variable Linear Displacement Transducer Liquid Level Sensors
		The EZ-track series Turck linear displacement transducer utilizes a diagnostic LED that enables the operator to understand the state of the Turck sensor dependent upon the position of the target magnet.
		Turck linear displacement transducers have been lab tested and field proven to withstand 2000 G's of shock and 30 G's of random vibration without false signals or mechanical damage.
		The 3/4-16 UNF thread allows the R10 Series Turck linear displacement transducer to be used in standard applications as a replacement or for new requirements.
	www.clrwtr.com /Turck-Linear-Displacement-Transducers.htm (876 words)

	LVDT \| Linear Variable Displacement Transducers by Honeywell Sensotec
		Sensotec linear variable displacement transducers are designed to meet requirements of most single and multiple point industrial gaging applications as well as micro-displacement instruments in research and scientific laboratories
		Sensotec offers a wide range of linear variable displacement transducers so that your sensor will provide the best measurements possible given the conditions encountered in your application.
		Our linear variable displacement transducers operate in temperatures as low as -58 degrees fahrenheit to as high as 257 degrees fahrenheit.
	www.sensotec.com /lvdt.asp (192 words)

	98-01 (Site not responding. Last check: 2007-10-14)
		Designing a pressure compensated variable displacement gear pump is a challenging problem that several engineers have attempted to solve.
		While the known art shows variable displacement pump forms that may be physically realized, their complexities make practical commercialization unrealistic.
		The resulting variable displacement gerotor pump has a fixed gear axis eccentricity and varies displacement by moving controlling elements linearly along the drive shaft.
	www.uark.edu /admin/rsspinfo/links/Techtran/tech/mechengr/98-01.html (273 words)

	Aeronautics - Aircraft Hydraulics - Level 3 (Hydraulic Motors)
		The motor can be used with variable displacement pumps for automatic transmissions and could be operated by a metering selector valve for movement of gun turrets.
		Variable displacement pumps work by having the pump side at an angle to the horizontal.
		The pump could be controlled by a yoke that moves the pump to different angles, thus varying the pump displacement.
	www.allstar.fiu.edu /aerojava/Hydr19.htm (557 words)

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