The engine room was thirty-five feet (11 m) long, housing two high-pressure engines.

The efficiency of Energiprojekt's steam engine reaches some 27-30% on high-pressure engines.

Discovery's original launching date was repeatedly pushed back so that faulty or suspect parts could be replaced, including three high-pressure engine pumps.

She was a frigate of great speed, fitted with high-pressure engines which admitted a pressure of seven atmospheres.

The high-pressure engine, as developed by Richard Trevithick, used double-acting pistons and became the model for most steam engines afterwards.

The close proximity to oil and high-pressure engines mean heat treated garter springs are essential for enduring temperatures over 100 C (212 F).

Aft of the pilothouse, twin smokestacks vented the smoke from the six boilers that powered two horizontal, high-pressure engines.

Trevithick's first high-pressure engines from 1801 onwards, including his locomotives, used the return connecting rod layout in both horizontal and vertical arrangements.

After Richard Trevithick's development of the high-pressure engine, transport-applications became possible, and steam engines found their way into boats, railways, farms and road vehicles.

The first prize of a holiday to Thailand was won by Per Hougaard from high-pressure engine suppliers Nilfisk Gerni.

The following year, Trevithick and his partner, his cousin Andrew Vivian, patented a steam coach, the patent also describing other uses for Trevithick's new high-pressure engines.

The Bloomer, a 130-ton side-wheeler with high-pressure engines, navigated the route between Geneva and Pensacola in 1857, as did the Brooklyn, which was built in Geneva.

Around 1800 Richard Trevithick and, separately, Oliver Evans in 1801 introduced engines using high-pressure steam; Trevithick obtained his high-pressure engine patent in 1802.

Read was succeeded in reconstructed steam engine, he modified the Watt engine to a high-pressure engine, and could be widely used in new fileds, such as steamboat and locomotive.

As the 18th century advanced, the call was for higher pressures; this was strongly resisted by Watt who used the monopoly his patent gave him to prevent others from building high-pressure engines and using them in vehicles.

However, the development of high-pressure engine technology allowed propellants with a higher energy density to be used, and so LOX/Kerosene quickly replaced LOX/Ethanol as the propellant of choice.

With an engine and power train of Daniel French's design and manufacture, the Comet was the first Mississippi steamboat to be powered by a light weight and efficient high-pressure engine turning a stern paddle wheel.

As steam expands in a high-pressure engine, its temperature drops; because no heat is released from the system, this is known as adiabatic expansion and results in steam entering the cylinder at high temperature and leaving at low temperature.

She was a large vessel of five hundred tons, and handsomely fitted up, though with high-pressure engines; which always conveyed that kind of feeling to me, which I should be likely to experience, I think, if I had lodgings on the first-floor of a powder-mill.

In a high-pressure engine, most of the pressure difference is provided by the high pressure steam from the boiler; the low pressure side of the piston may be at atmospheric pressure or, if it is connected to a condenser, this only provides a small proportion of the pressure difference.