Search results
Results from the WOW.Com Content Network
1957 – Rambler Rebel announced Electrojector electronic fuel injection option, however no production models were offered with the option. 1964 – Ion engine invented. [21] 1966 – RD-0410 nuclear thermal rocket engine was ground-tested. 1960s – alternators replace generators on automobile engines. [22]
Internal combustion engines date back to between the 10th and 13th centuries, when the first rocket engines were invented in China. Following the first commercial steam engine (a type of external combustion engine) by Thomas Savery in 1698, various efforts were made during the 18th century to develop equivalent internal combustion engines.
The so-called Otto engines were developed in Germany during the last quarter of the 19th century. The fuel for these early engines was a relatively volatile hydrocarbon obtained from coal gas. With a boiling point near 85 °C (185 °F) (n-octane boils at 125.62 °C (258.12 °F) [1]), it was well-suited for early carburetors (evaporators). The ...
A 5-cylinder engine would thus use a "2" and a "3", whereas a 6-cylinder engine could have either 3 "2"s or 2 "3"s. Boat engines had a cast iron crankcase, whereas (in the interest of lightness) road vehicles would have an aluminium alloy crankcase. Any boat engine with an alloy crankcase would be a marinised road engine. The Gardner engine of X24
The term engineering itself has a much more recent etymology, deriving from the word engineer, which itself dates back to 1325, when an engine’er (literally, one who operates an engine) originally referred to "a constructor of military engines." [1] In this context, now obsolete, an "engine" referred to a military machine, i. e., a mechanical ...
Developed for Charles Porter by Charles Richard, the steam engine indicator traces on paper the pressure in the cylinder throughout the cycle, which can be used to spot various problems and to optimize efficiency. [14] [19] Earlier versions of the steam engine indicator were in use by 1851, though relatively unknown. [20]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
The smaller engines were commonly air-cooled and located at the rear of the vehicle; compression ratios were relatively low. The 1970s and 1980s saw an increased interest in improved fuel economy , which caused a return to smaller V-6 and four-cylinder layouts, with as many as five valves per cylinder to improve efficiency.