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US 10,119,439 B2Granted
Blow-by gas recirculating apparatus
AssigneeMazda Motor Corporation
InventorsTakashi Kashiwabara, Kouichi Shimizu
Life of this patent
Estimating the term…
Abstract
A blow-by gas recirculating apparatus includes: an oil separator provided to a side surface of a cylinder block at one side of an engine; a communication part providing communication between a blow-by gas outlet port of the oil separator and an intake manifold; and a PCV valve. The PCV valve is provided to the intake manifold, and the communication part is connected to the PCV valve. The PCV valve provided to the intake manifold is positioned above the blow-by gas outlet port of the oil separator with the engine mounted on a vehicle.
Claims14
A blow-by gas recirculating apparatus comprising:
- an intake manifold secured to one side of an engine, and configured to introduce intake air into a combustion chamber, the intake manifold includes independent passageways each branching off downstream of the surge tank, and a common passageway connected upstream of the surge tank;
- the independent passageways are connected to a lower portion of the surge tank;
- the common passageway is connected to an upper portion of the surge tank;
- an oil separator provided to a side surface of a cylinder block at the one side of the engine, and configured to separate oil mist from blow-by gas;
- a conduit configured to provide communication between a blow-by gas outlet port of the oil separator and the intake manifold;
- and
- a PCV valve configured to adjust a flow amount of the blow-by gas to be introduced into the intake manifold via the conduit,
- the PCV valve physically contacting an upper portion of the surge tank, and communicating with an interior of the surge tank,
- the conduit being connected to the PCV valve, and
- the PCV valve provided to the intake manifold being positioned above the blow-by gas outlet port of the oil separator with the engine mounted on a vehicle.
7 more elements
A blow-by gas recirculating apparatus comprising:
- an intake manifold secured to one side of an engine, and configured to introduce intake air into a combustion chamber, the intake manifold includes independent passageways each branching off downstream of the surge tank, and a common passageway connected upstream of the surge tank;
- the independent passageways are connected to a lower portion of the surge tank;
- the common passageway is connected to an upper portion of the surge tank;
- an oil separator provided to a side surface of a cylinder block at the one side of the engine, and configured to separate oil mist from blow-by gas;
- a conduit configured to provide communication between a blow-by gas outlet port of the oil separator and the intake manifold;
- and
- a PCV valve configured to adjust a flow amount of the blow-by gas to be introduced into the intake manifold via the conduit,
- the PCV valve being provided on a PCV valve receiving portion, which is provided on an upper portion of the surge tank of the intake manifold, and communicating with an interior of the surge tank,
- the conduit being connected to the PCV valve, and
- the PCV valve provided to the intake manifold being positioned above the blow-by gas outlet port of the oil separator with the engine mounted on a vehicle.
7 more elements
A blow-by gas recirculating apparatus comprising:
- an intake manifold secured to one side of an engine, and configured to introduce intake air into a combustion chamber, the intake manifold includes independent passageways each branching off, downstream of the surge tank and a common passageway connected upstream of the surge tank;
- the independent passageways are connected to a lower portion of the surge tank;
- the common passageway is connected to an upper portion of the surge tank;
- an oil separator provided to a side surface of a cylinder block at the one side of the engine, and configured to separate oil mist from a blow-by gas;
- a conduit configured to provide communication between a blow-by gas outlet port of the oil separator and the intake manifold;
- and
- a PCV valve configured to adjust a flow amount of the blow-by gas to be introduced into the intake manifold via the conduit,
- the conduit extends at the blow-by gas outlet port away from the PCV valve in the vehicle width direction, horizontally turns around, and extends closer toward the PCV valve in the vehicle width direction,
- the PCV valve being provided on a PCV valve receiving portion, which is provided on an upper portion of the surge tank of the intake manifold, and communicating with an interior of said surge tank, and
- the PCV valve provided to the intake manifold being positioned above the blow-by gas outlet port of the oil separator with the engine mounted on a vehicle.
7 more elements
Dependencies are inferred from the claim text.