inlet valve
noun1
In an internal combustion engine A valve that lets fuel into a cylinder.
- Individual cylinder heads are fitted each with two inlet and two exhaust valves, a fuel injector and a pre-combustion chamber.1958 April 23, “British Railways First Main-Line Diesel-Hydraulic Locomotive”, in Railway Magazine, page 265:
2
In a steam engine A valve that lets steam into a cylinder.
3
Of water A valve that lets water into a cistern, or wherever it is required.