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.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
The significant reduction of intake pressure along with the changing valve overlap during the tip-out results in a large increase of internal residual.
Figure 3 shows that in this study the residual gas level ranged from a maximum of 7% at a throttled, 60 kPa intake pressure condition, to a minimum of 2% at a boosted 146 kPa intake pressure.
In order to ensure that the test is comparable, an automatic constant-pressure valve is installed onto the intake airline between the mixer and the engine to ensure that intake pressure is in consistency with that under normal inlet running condition.
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.
The intake pressure is regulated by pressure control unit.
Parameter Description Value 1 Q Cooling capacity 300 W (1023.6 Btu * h-1) 2 n Motor speed 1800 rpm 3 [T.sub.eva] Evaporation 5[degrees]C (41[degrees]F) temperature 4 [T.sub.con] Condensation 46[degrees]C temperature (114.8[degrees]F) 5 [P.sub.in] Intake pressure 0.35 MPa (50,763 psi) 6 [P.sub.out] Back pressure 1.20 MPa (174,045 psi) Table 2.
That causes an air leak and a loss of intake pressure. Then the engine doesn't get enough cool air to keep it running smoothly--especially in hot weather.
As the pressure ratio ([p.sub.e]/[p.sub.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.