SYSTEM AND METHOD FOR STORING CRANKCASE GASES TO IMPROVE ENGINE AIR-FUEL CONTROL
First Claim
Patent Images
1. A system for combusting internal combustion engine crankcase gases, the system comprising:
- an internal combustion engine comprising a crankcase, an intake manifold, a duct connecting the crankcase to the intake manifold;
a canister comprising hydrocarbon storage media, the canister located along the length of the duct and in communication with the duct; and
an electrically adjustable valve capable of regulating flow of gases from the canister to the intake manifold.
1 Assignment
0 Petitions
Accused Products
Abstract
A system and method for improving processing of gases contained within the crankcase of an internal combustion engine is presented. The system is especially suited for single boiling point fuels because it allows the storage of such fuels until the fuel can be opportunistically combusted.
-
Citations
26 Claims
-
1. A system for combusting internal combustion engine crankcase gases, the system comprising:
-
an internal combustion engine comprising a crankcase, an intake manifold, a duct connecting the crankcase to the intake manifold; a canister comprising hydrocarbon storage media, the canister located along the length of the duct and in communication with the duct; and an electrically adjustable valve capable of regulating flow of gases from the canister to the intake manifold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A system for combusting internal combustion engine crankcase gases, the system comprising:
-
an internal combustion engine comprising at least a cylinder, a crankcase, an intake manifold, and a throttle located upstream of the intake manifold and within an air intake duct; crankcase ventilation ducting for evacuating gases from within the crankcase, the ducting including a canister for storing fuel vapor; and a controller that regulates the storage and release of fuel vapors from the crankcase to the canister. - View Dependent Claims (13, 14, 15, 16, 17)
-
-
18. A method for processing gases contained within the crankcase of an internal combustion engine, the method comprising:
-
purging gases from the crankcase of an internal combustion engine; and storing the gases in a canister in response to engine operating conditions. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
-
Specification