Technical Parameters :
| Tested Media : | Wet Soil,Oil,Corrosive liquidand gas |
| Pressure type: | Gauge pressure(G), Sealed pressure(S), Vent Pressure(V) |
| Full Scale Pressure Range : | 0~ 5000psi, 6000psi, 0~ 10000psi , 0~ 15000psi , 0~ 20000psi. |
| Supply Voltage : | 10-32VDC |
| Output Signal: | 4-20mA,0-5VDC,1-5VDC,0-10VDC,3mV/V |
| Installation : | “1502” Hammer Union |
| Electrical Connection : | Aviation connector or Direct outgoing |
| Combined Accuracy : | 0.5%FS, 0.25%FS |
| Long-Term Stability: | ≤ ± 0.1%FS/Year |
| Working medium temperature : | -40~ +90ºC |
| Operating Temperature : | -40~ +90ºC |
Dimensions in mm :
Tags: crankcase pressure sensor
What is the crankcase pressure sensor and its role in automotive
engines?
The crankcase pressure sensor, also known as a crankcase pressure
transducer or sensor, is a vital component in automotive engines,
especially those with positive crankcase ventilation (PCV) systems.
Its primary role is to monitor and measure the pressure inside the
engine's crankcase.
Role in Automotive Engines:
The crankcase pressure sensor serves several essential functions in
an automotive engine:
Crankcase Pressure Monitoring: The sensor continuously monitors the
pressure within the engine's crankcase, which is the area that
houses the engine's crankshaft, connecting rods, and other
components.
Emissions Control: One of the primary purposes of the crankcase
pressure sensor is to help control emissions. By monitoring the
pressure in the crankcase, it can signal the engine control module
(ECM) to adjust the flow of gases through the PCV system. This
ensures that crankcase gases, including harmful hydrocarbons, are
properly managed and routed to the intake manifold for combustion,
reducing harmful emissions.
Engine Efficiency: Accurate monitoring of crankcase pressure
contributes to engine efficiency. Maintaining the correct pressure
allows the engine to operate optimally, reducing oil leaks and
improving overall performance.
Early Issue Detection: The sensor can detect irregularities in
crankcase pressure that may indicate issues such as excessive
blow-by, clogged PCV valves, or problems with the engine's
ventilation system. This early detection helps with preventive
maintenance and reduces the risk of engine damage.
How the Crankcase Pressure Sensor Works:
The crankcase pressure sensor uses various technologies to measure
the pressure within the crankcase. Common methods include strain
gauges, piezoelectric elements, or capacitive sensors. As crankcase
pressure changes due to factors like engine load and blow-by, these
sensors detect these variations and convert them into electrical
signals. The ECM processes these signals and, based on the data,
adjusts the PCV system to maintain the desired pressure and
emission control.
Significance in Automotive Engines:
The crankcase pressure sensor is significant for several reasons:
Emissions Compliance: It helps vehicles comply with emissions
standards by efficiently managing and reducing harmful gases that
can escape from the crankcase.
Engine Health: Monitoring crankcase pressure is crucial for early
detection of issues that can affect engine health, preventing
costly repairs and engine damage.
Performance: Proper crankcase pressure management contributes to
engine efficiency and overall vehicle performance.
