intake pressure

inlet pressure

i. The total pressure taken in the engine inlet as a measure of air density. This parameter is sent to the fuel control for fuel scheduling. It is normally known as P1 pressure.
ii. As it relates to the performance data on pumps, when not other-wise specified, the total static pressure measured in a standard testing chamber by a vacuum gauge located near the inlet port. Also called intake pressure, fine pressure, or head pressure.
References in periodicals archive ?
A laboratory air handling system was constructed to allow for external EGR while using pressurized facility air and achieving a flipped pumping loop, where the exhaust pressure is lower than the intake pressure.
The intake pressure in the well is relatively stable, which indicates that additional production capacity may exist.
This may be due to increase in intake pressure and temperature of charge entering in to the cylinder along with the steam through inlet manifold.
That causes an air leak and a loss of intake pressure.
i]) and the compression ratio are varied, the fraction of the cylinder volume occupied by the residual gas at the intake pressure varies.
To that effect, the test gun came with a special adapter to limit the intake pressure to 125 psi.
Sensor input is provided regarding yaw rate, wheel speed, steering angle, throttle position, lateral g forces, and front/rear g forces, as well as the engine rpms, intake pressure, and transmission gear ratio.
The volume of the manifold's plenum is tuned to resonance together with the length of the inlet passages to amplify intake pressure waves thereby assisting charge, air filling of each cylinder.
The actual compression ratio developed depends on the intake pressure and the nature of the gases being pumped.
Maximum scavenging (and torque) occurs when the intake port opens just as the exhaust gas' momentum has caused a slight vacuum in the cylinder compared to intake pressure.
Furthermore, in several investigations [1, 2, 13,14, 15, 16] increased cycle-to-cycle variations were observed in direct injection (DI) diesel engines when changing the intake temperature, intake pressure (load) and injection timing parameters in order to create conditions of prolonged ID.