Blowby disposal system
AssigneeCaterpillar Inc.
InventorDennis D. Feucht
Life of this patent
Estimating the term…
Abstract
A blowby disposal system for disposing of blowby contaminants from a blowby mixture contained within a crankcase chamber of an internal combustion engine includes an air-oil separator, a passage to transport the blowby mixture from the crankcase chamber to the air-oil separator, a pump, and a passage to transport the blowby contaminants from the air-oil separator to the pump. The pump directs the stream of contaminants into the exhaust system of the engine where it becomes a portion of the overall exhaust emission stream. Degradation of the engine components and the turbocharger components is reduced because the blowby contaminants are not introduced into these components through the air intake system.
Claims11
A blowby disposal system for disposing of oil and contaminants from a contaminant mixture contained within a crankcase chamber of an internal combustion engine, comprising:
- an air-oil separator having a first portion;
- a first passage connecting the engine to the first portion of said separator;
- an exhaust system;
- a blowby pump having first and second end portions, a middle portion and being positioned intermediate said exhaust system and said air-oil separator;
- a second passage connecting the blowby pump to said separator first portion;
- a third passage connecting said second end portion of said blowby pump to said exhaust system;
- and
- an air cleaner connected to the air-oil separator and passing inlet air through said separator.
A method of removing contaminants from a contaminant mixture from the crankcase chamber of an internal combustion engine and disposing of said contaminants into the exhaust system of the engine, comprising the steps of:
- transporting the contaminant mixture from the crankcase chamber to an inlet of an air-oil separator;
- separating said mixture into first and second portions, said first portion having a large amount of the oil;
- depositing said first portion in the bottom portion of said separator;
- transporting said oil from said separator to said crankcase chamber;
- transporting said second portion, including air and contaminants, from said separator to a blowby pump;
- and
- transporting said second mixture portion from said pump into the exhaust system of the engine.
A blowby disposal system for disposing of oil and contaminants from a contaminant mixture contained within a crankcase chamber of an internal combustion engine, comprising:
- an air-oil separator having a first portion;
- a first passage connecting the engine to the first portion of said separator;
- an exhaust system;
- a blowby pump having first and second end portions, a middle portion and being positioned intermediate said exhaust system and said air-oil separator;
- a second passage connecting the blowby pump to said separator first portion;
- a third passage connecting said second end portion of said blowby pump to said exhaust system;
- and
- an air cleaner having a housing and being connected to the air-oil separator, said air cleaner passing inlet air through said separator, said separator being positioned within said housing.
Dependencies are inferred from the claim text.