The hot bulb engine, or hotbulb or heavy oil engine is a type of internal combustion engine. It is an engine in which fuel is ignited by being brought into contact with a red-hot metal surface inside a bulb followed by the introduction of air (oxygen) compressed into the hot bulb chamber by the rising piston. There is some ignition when the fuel is introduced but it quickly uses up the available oxygen in the bulb. Vigorous ignition takes place only when sufficient oxygen is supplied to the hot bulb chamber on the compression stroke of the engine.
Most hot bulb engines were produced as one-cylinder low-speed two-stroke crankcase scavenging units.
Read more about Hot Bulb Engine: History, Operation and Working Cycle, Advantages, Uses, Compression Ignition, Replacement, Production
Famous quotes containing the words hot, bulb and/or engine:
“Oh, you’ll love the sea. There’s something about it. The hot red dawn, the towering sails, the wake on a tropical night. Oh, you’ll love it all. It’s a glorious kind of world. I couldn’t live without it.”
—Charles Larkworthy. Denison Clift. Capt. Benjamin Briggs (Arthur Margetson)
“... until the shopkeeper plants his boot in our eyes,
and unties our bone and is finished with the case,
and turns to the next customer, forgetting our face
or how we knelt at the yellow bulb with sighs
like moth wings for a short while in a small place.”
—Anne Sexton (1928–1974)
“The will is never free—it is always attached to an object, a purpose. It is simply the engine in the car—it can’t steer.”
—Joyce Cary (1888–1957)