admission valve

The Walschaerts gear can be linked to inside or outside admission valves.

A development introduced in the 1950s was the direct admission valve, fitted to every brake cylinder.

The steam coming from the boilers entered the turbine's distribution box through the admission valve.

Each piston has one head admission valve.

To accomplish this, the centrifugal governor is linked to a pair of cams, one for each admission valve.

Uniflow engines have admission valves at the cylinder heads and exhaust ports at the midpoint.

While the Class 10 had outside admission valves, the Class 10B used inside admission piston valves.

This may be needed during engine maintenance, for example, to set the cutoff and admission valve timing, and it may be needed during engine starting.

White Cliffs Solar Power Station used a three-cylinder uniflow engine with "bash" type admission valves to generate about 25 kW electrical output.

When used in high-pressure applications, for example, as admission valves on steam engines, the same pressure that helps seal poppet valves also contributes significantly to the force required to open them.

This comes far closer to the ideal Carnot cycle than is possible with an engine where the admission valve is open for the length of the power stroke and speed is regulated by a throttle valve.

As with all steam engines where the cutoff can be regulated, the virtue of doing so lies in the fact that most of the power stroke is powered by the expansion of steam in the cylinder after the admission valve has closed.