What's the difference between piston and plunger?

Piston


Definition:

  • (n.) A sliding piece which either is moved by, or moves against, fluid pressure. It usually consists of a short cylinder fitting within a cylindrical vessel along which it moves, back and forth. It is used in steam engines to receive motion from the steam, and in pumps to transmit motion to a fluid; also for other purposes.

Example Sentences:

  • (1) The buccal glands of adults of the Southern Hemisphere lamprey Geotria australis consist of a pair of small, bean-shaped, hollow sacs, embedded within the basilaris muscle in the region below the eyes and to either side of the piston cartilage.
  • (2) Both groups were ventilated with a constant-volume piston ventilator.
  • (3) To give variations in the peak flow-rate (from pulsatile to intermediate to non-pulsatile), three types of blood pump (piston-bellows, screw, and centrifugal) were applied to dogs.
  • (4) The players were each to be given a present: Dietmar Hamann (he's German, tee hee hee) got a copy of Mein Kampf, while the Italian Alessandro Pistone, perceived as lacking fight, was given a sheep's heart.
  • (5) After 4 minutes of ventricular fibrillation CPR was performed with the use of a pneumatic piston compressor.
  • (6) Sinusoidal volume changes were delivered through a tracheostomy by a piston pump driven by a linear motor.
  • (7) In groups I-III it is possible to discover whether the piston is too long or too short, whether it is dislocated or has slipped.
  • (8) Pressures and flows from this pump were compared to a Harvard Apparatus pulsatile piston pump.
  • (9) The vein graft technique (nine cases) is very much inferior to the piston technique.
  • (10) Results of partial stapedectomy with the formation of small fenestra and the use of teflon piston prostheses in the period of 1980-1984 are shown.
  • (11) They suck, by means of a stylet acting as a piston, all components of the muscle cell which develops into a nurse cell, into their oral cavity.
  • (12) A pneumatically driven piston was used to cause a mechanical stress (10-150 N) on the stabilized tooth crown for 30 s, with instantaneous onset and release.
  • (13) They recorded an auditory gain in more than half the patients (early: PORP 97%, TORP 73%, piston 52%; plasty transplants of ossicles obtained from subjects who died accidentallyÄ• For preserfic Council of the Ministry of Health, Czech Socialist Republic, recommended, based on the clinical tests, the manufacture of silastic prostheses of the middle ear.
  • (14) It is designed as a positive displacement pump, with blood allowed to collect in a valved cavity from which it is ejected by the reciprocating action of a piston.
  • (15) The ejection force is wholly produced by the compressed coil spring and is transmitted to the piston in the blood chamber by a rod.
  • (16) The 4 modes of failure characterizing stem-type component progressive loosening mechanisms consisted of stem pistoning within the acrylic (3.3%), cement-embedded stem pistoning with the femur (5.1%), medial midstem pivot (2.5%), calcar pivot (0.7%) and bending (fatigue) cantilever (3.3%).
  • (17) In model 1, diaphragmatic descent was treated as if it were a "piston in a cylinder."
  • (18) Insertion, which takes only a few minutes, is accomplished with a plastic tube and piston device.
  • (19) The expanding ameroid pushes a piston with a concave extension (makrolon) a maximum of 2 mm against the artery, which is fixed to the metal housing by a teflon band (width: 4 mm, thickness: 0.5 mm).
  • (20) The novel design of this pump incorporates two rack-mounted pistons, driven into opposing cylinders by a micro-stepping motor.

Plunger


Definition:

  • (n.) One who, or that which, plunges; a diver.
  • (n.) A long solid cylinder, used, instead of a piston or bucket, as a forcer in pumps.
  • (n.) One who bets heavily and recklessly on a race; a reckless speculator.
  • (n.) A boiler in which clay is beaten by a wheel to a creamy consistence.
  • (n.) The firing pin of a breechloader.

Example Sentences:

  • (1) Parameters evaluated were rotation speed, plunger frequency, medium volume, medium type, medium sampling location, number of plunger ribs, and number of gum pieces.
  • (2) The second person exerts sufficient pressure on the plunger of the syringe to produce intermittent minimal flow of saline.
  • (3) Plunger loads were alternated so that each was used, initially, 50% of the time.
  • (4) When marked resistance to withdrawal of the plunger occurs and on release the plunger rebounds to its original position the oesophagus has been intubated.
  • (5) The ease of insertion without a plunger and gloves (inserter tube diameter 3 mm) and the ease of removal (force of traction approximately 1 N) mean safety also for the medical and paramedical fitter of the CU SAFE 300 IUD.
  • (6) A standard plastic luer hub allows the trephine to be used with a syringe, either a standard type or one with a spring-assisted plunger.
  • (7) The plunger is operated by hand to homogenize a sample in 2-20 microliter of buffer in a tube.
  • (8) Prostaglandins are not suited for menstrual regulation; use of the Karman catheter with pressure on the plunger instead of negative pressure has proven very successful.
  • (9) The toxic material originated from zinc compounds that were present in the rubber stopper and plunger of the container and that subsequently leached into the formulation.
  • (10) Two methods, the so-called "oil drop" and "Teflon plunger" methods, were designed to monitor lipase hydrolysis of natural long-chain triacylglycerols through the variation with time of the oil-water interfacial tension.
  • (11) 'Micropets' of different volumes are easily made from inexpensive, commercially available Drummond 100 microliter glass tubes (bores) fitted with teflon plungers.
  • (12) An unmanned spacecraft with a giant telescoping plunger would fly to the asteroid, suck it in, and secure it in a truly industrial-strength Hefty bag of sorts.
  • (13) This does not just apply to shale gas operations – conventional gas drilling also produces leaks, which can be stanched by a variety of technologies, including one known as "plunger lift".
  • (14) The suspension cultivation in test tube with cotton plunger could not support the schizogony of P. vivax, while other groups could at least complete two schizogony cycles.
  • (15) He recommends filter coffee, with "plungers, pour overs , siphons , Aeropress etc" using water two minutes off the boil, and 60g a litre for all filter coffees.
  • (16) We suggest that for optimal PO2 determinations syringes should not only allow minimal air contamination but also have plungers that reduce injection pressure to a minimum.
  • (17) The required thin layer of the fluid is created between the cellulose tube walls and its metal cap, that functions as a plunger.
  • (18) Adding ATP (1 mM) to myosin B suspension and mixing was carried out by hand, using a mixing plunger, and also using the automatic adder mixer.
  • (19) Intraocular pressure as a function of plunger weight and the reading of measurement is shown in mmHg.
  • (20) A simple method is described which highlights the leaching of 2-mercaptobenzothiazole and 2-(2-hydroxy-ethylthio)benzothiazole from the rubber plunger-seals of disposable syringes: contact of rubber with bidistilled water, extraction of this liquid with chloroform, chromatography on silica gel with the solvents previously studied and spraying with N-chloro-2,6-dichloro-p-benzoquinone monoimine.