manifold pressure


Also found in: Acronyms.

manifold pressure

[′man·ə‚fōld ‚presh·ər]
(mechanical engineering)
The pressure in the intake manifold of an internal combustion engine.

manifold pressure

The absolute pressure in the intake manifold of a reciprocating engine. It is the pressure at which the fuel-air mixture is forced into cylinders and is equal to the atmospheric pressure plus a boost less friction losses in the manifold less the pressure drop across the throttle valve. It is indicated by a manifold absolute pressure (MAP) gauge. It may be an indicator of a throttle setting and power output if the RPM is constant.
References in periodicals archive ?
This mass rate is a function of the manifold pressure and the engine speed.
The reduction in altitude to 350 m above sea level, which corresponds to the increase of apparent barometric pressure, was simulated with increasing the inlet manifold pressure of the engine by using a three-lobe rotary blower of the Roots type.
The subject of the public contract under this VR the continuous supply of the medicinal product, compressed gaseous medical oxygen, in 2 liters and 10 liters of lightweight cylinders with integrated pressure reducing valve, manifold pressure 200 bar cylinders including rent, distribution (delivery) and other fees ie.
Uses include tank level, manifold pressure and barometric pressure measurement as well as dive computers, sealed systems and corrosive fluid and gas measurement systems.
The mass flow rate of the fuel through an orifice is determined by the orifice size, discharge coefficient, and manifold pressure upstream from the orifice.
The probe found there were issues with oil and water temperature control, air manifold temperature control, a complete lack of any air manifold pressure control and frequent detonation.
The AD8555's unique combination of precision performance and functionality in a very compact footprint make it an ideal solution for automotive pressure sensor applications, such as brake, fuel and manifold pressure sensing.
The changes in fuel flow rate were obtained by substituting different-sized fuel orifices in all the burners and/ or making adjustments to the manifold pressure and gas line pressure.
Parameters that are monitored include gas emission analysis in addition to torque, horsepower, engine rotation per minute (RPM), fuel flow, air flow, inlet air temperature, exhaust gas temperatures, manifold pressure, oil pressure, oil temperature and water temperature.
Air manifold pressure was the same, horsepower was the same, ignition timing was the same, fuel Btu was the same and fuel manifold pressure was the same.
9 EGT probes and harnesses, the engine oil temperature sensor, the engine oil level sensor, the delta pressure oil pressure switch, the mass fuel flow meter, the oil filter delta pressure sensor, the engine oil pressure sensor, the fuel filter delta pressure sensor and the fuel manifold pressure sensor.
The Turbopac(TM) system delivers nearly instantaneous increased intake- manifold pressure for internal combustion engines, improving responsiveness and torque at low engine speeds, and reducing turbocharger spooling time.