Vapor lock is a problem caused by liquid fuel changing state to vapor while still in the fuel delivery system of gasoline-fueled internal combustion engines. This disrupts the operation of the fuel pump, causing loss of feed pressure to the carburetor or fuel injection system, resulting in transient loss of power or complete stalling. Restarting the engine from this state may be difficult.[1]
The fuel can vaporize due to being heated by the engine, by the local climate or due to a lower boiling point at high altitude. In regions where fuels with lower viscosity (and lower boiling threshold) are used during the winter to improve engine startup, continued use of the specialized fuels during the summer can cause vapor lock to occur more readily.
^Taylor, Charles Fayette (1985). The Internal-combustion Engine in Theory and Practice: Combustion, fuels, materials, design. M.I.T. Press. p. 140-142. ISBN 9780262700276.
Vaporlock is a problem caused by liquid fuel changing state to vapor while still in the fuel delivery system of gasoline-fueled internal combustion engines...
lower levels are desirable in avoiding vaporlock during summer heat. Fuel cannot be pumped when there is vapor in the fuel line (summer) and winter starting...
vaporize or "boil" within these fuel lines creating a condition called vaporlock. This combination of liquid fuel and vaporized fuel within the fuel line...
carburetor is upstream of the supercharger. Problems of fuel boiling and vaporlock can occur in carbureted engines, especially in hotter climates. Since...
the upper explosive limit. High temperature fuel may also result in a vaporlock, which is unrelated to flooding but has a similar symptom. Flooding can...
25 psi, for aircraft. The lower avgas volatility reduces the chance of vaporlock in fuel lines at altitudes up to 22,000 ft. The particular mixtures in...
fuel to allow the engine to run properly, for example due to blockage, vaporlock, contamination by water, malfunction of the fuel pump or incorrect operation...
always had his hands clasped together behind his back. Newsom replied, "vaporlock!" bringing down the house with laughter. Carson quipped, "I'm out here...
high-octane gasoline. It can readily be used in most modern engines. To prevent vaporlock due to being a simple, pure fuel, a small percentage of other fuel or...
reduces ozone emissions, and reduces smog levels. At the same time, vaporlock is less likely to occur in hot weather. Below is a table of the energy...
durability. Rigid may be required for certain areas and additionally, vapor-lock fittings may be required in areas where a fire or explosion hazard is...
repeatedly compressing and decompressing the bubbles. To prevent this type of "vaporlock", chromatography solvents are often degassed before pumping. If the pressure...
interfering with the flow of the liquid and solid components of blood (vaporlock). Therefore, having a delivery system, which prevents air room diffusion...
unusual to see four cars fail to finish the race due to problems with the vaporlock. It occurs when the liquid fuel changes state from liquid to gas while...
throttle problem, and the car remained in the lead for 100 laps before a vaporlock (caused by the car cooling down too much during a safety car period) led...
laps to go, he was leading the ARCA Midwest Tour race on Sunday when a vaporlock caused his car to temporarily lose power on a restart; he finished third...
to a regenerative blower. As regenerative turbine pumps cannot become vaporlocked, they are commonly applied to volatile, hot, or cryogenic fluid transport...
drivers failed to finish the race due to axle, spindle, coil, wheel, frame, vaporlock, tire, gasket, and bearing problems. The total winnings of the race was...
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