Valve arrangement for combustion sensor
AssigneeBombardier Motor Corporation of America
InventorSebastian Strauss
Life of this patent
Estimating the term…
Abstract
An arrangement for utilizing a combustion sensor with an internal combustion engine. The arrangement includes a sensor mounted to the outside of an engine cylinder for communication with exhaust gasses within the cylinder via a sampling passage. A mounting structure holds the sensor proximate the sampling passage and forms a sensor chamber to receive exhaust gas therein. The sensor chamber includes a flow diverter to prevent remaining combustion particles and liquid droplets from lodging against the sensor. The chamber also includes a collection region for collecting the particles and liquid which can then be expunged through a drain outlet.
Claims40
A system for sensing a combustion condition in an internal combustion engine, comprising:
- an engine having a cylinder defined by a cylinder wall along which a piston moves in a reciprocal manner during operation;
- a sampling passage extending through the cylinder wall into fluid communication with the cylinder;
- a sensor positioned to sense a combustion condition based on an outflow through the sampling passage;
- an outflow diverter to limit direct exposure of the sensor to any undesirable liquids carried by the outflow;
- and
- a pressure release valve disposed to block flow through the sampling passage until a sufficient pressure level is reached within the cylinder.
The system as recited in claim 3, wherein the pressure release valve comprises a spring-loaded plate.
The system as recited in claim 4, wherein the outflow diverter comprises a cupped edge along the spring loaded plate to redirect the outflow.
A system for sensing a combustion condition in an internal combustion engine, comprising:
- an engine having a cylinder defined by a cylinder wall along which a piston moves in a reciprocal manner during operation;
- a sampling passage extending through the cylinder wall into fluid communication with the cylinder;
- a sensor positioned to sense a combustion condition based on an outflow through the sampling passage;
- and
- a sensor chamber positioned about an outlet of the sampling passage, the sensor chamber being defined by a chamber wall having a drain outlet therethrough.
A system for sensing a combustion condition in a watercraft having an internal combustion engine, comprising:
- a watercraft;
- an engine mounted in the watercraft, the engine having a cylinder defined by a cylinder wall along which a piston moves in a reciprocal manner during operation;
- a sampling passage extending through the cylinder wall into fluid communication with the cylinder;
- a sensor positioned to sense a combustion condition based on an outflow through the sampling passage;
- and
- an outflow diverter to limit direct exposure of the sensor to any undesirable liquids carried by the outflow.
A system for sensing a combustion condition in a watercraft having an internal combustion engine, comprising:
- an engine having a cylinder defined by a cylinder wall along which a piston moves in a reciprocal manner during operation;
- a sampling passage extending through the cylinder wall into fluid communication with the cylinder;
- a sensor positioned to sense a combustion condition based on an outflow through the sampling passage;
- and
- a sensor chamber positioned about an outlet of the sampling passage, the sensor chamber being defined by a chamber wall having a drain outlet therethrough.
A system for sensing a combustion condition in an internal combustion engine, the system comprising:
- means for obtaining an exhaust gas sample from a cylinder of an engine;
- means for sensing the exhaust gas sample to determine a combustion condition;
- and
- means for purging the exhaust gas sample without reintroducing it into the cylinder.
Dependencies are inferred from the claim text.