Hydrogen augmented diesel crankcase ventilation

• US 7,571,719 B2
• Filed: 07/23/2007
• Issued: 08/11/2009
• Est. Priority Date: 01/12/2006
• Status: Expired due to Fees

• Current Assignee: James Richardson
• Original Assignee: James Richardson
• Inventors: Richardson, James
• Primary Examiner(s): MCMAHON, MARGUERITE J
• Application Number:
  US11/781,826
• Publication Number:
  US 20080011249A1
• Time in Patent Office: 750 Days
• Field of Search: 123572-574, 123/41.86, 123/3, 123/DIG.12
• US Class Current: 123/572
• CPC Class Codes: F01M 13/022 using engine inlet suction
• CPC Class Codes: F01M 13/028 of positive pressure
• CPC Class Codes: F02B 3/06 with compression ignition compression ignition engines using air or gas for blowing fuel into compressed air in cylinder F02B13/02
• CPC Class Codes: F02M 25/06 adding lubricant vapours
• CPC Class Codes: F02M 25/10 adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies
• CPC Class Codes: Y10S 123/12 Hydrogen

Abstract

A hydrogen augmented diesel crankcase ventilation system uses hydrogen to allow crankcase fumes, for example blow-by, to be burned by the engine. The system preferably includes a hydrogen generation system as a hydrogen source connected to an engine air intake by a hydrogen hose, a fumes hose connecting the crankcase to the air intake, and a clean air hose connecting a clean air source to the crankcase. An orifice or a vacuum regulator in cooperation with the fumes hose may be included to regulate crankcase vacuum. A filter resides inline with the fumes hose to capture solids or liquids which enter the fumes hose from the crankcase, and a drain hose drains captured liquid back into the engine. A back flow preventor may be included in cooperation with the clean air hose to prevent a back flow of crankcase fumes through the clean air hose.

Claims

1. A hydrogen augmented diesel engine comprising:

a diesel engine including;

an air intake for receiving an air flow for the engine;

an intake manifold in fluid communication with the air intake for receiving the air flow and providing the air flow to the engine;

an engine crankcase; and

a hydrogen augmented crankcase ventilation system comprising;

a hydrogen source producing a hydrogen flow including hydrogen gas;

a hydrogen hose connecting the hydrogen source to one of the air intake and the intake manifold, the hydrogen hose carrying the hydrogen flow from the hydrogen source to the engine air intake;

a breather hose in fluid communication with the engine crankcase for receiving a fumes flow from the crankcase;

a filter connected to the breather hose at an end opposite the crankcase, the filter including a bowl for collecting liquids in the fumes flow;

a drain line connected between the filter and the engine for draining the collected liquids into the engine;

a fumes hose connecting the filter to the air intake, the fumes hose carrying the fumes flow from the filter to the air intake, such that the hydrogen flow and the fumes flow are combined together and joined with the air flow received by the diesel engine through the air intake.

2. The system of claim 1, wherein the hydrogen source is a hydrogen generator.

3. The system of claim 2, wherein;

the hydrogen generator generates both the hydrogen gas and oxygen gas; and

the hydrogen hose carries both hydrogen gas and oxygen gas to one of the air intake and the intake manifold.

4. The system of claim 1, wherein a supercharger fluidly resides between the air intake and the intake manifold.

5. The system of claim 4, wherein a turbocharger fluidly resides between the air intake and the intake manifold.

6. The system of claim 1, further including a clean air hose in fluid communication with the engine crankcase, the clean air hose carrying a clean air flow to the crankcase.

7. The system of claim 6, wherein the clean air hose includes an in-line back flow preventor.

8. The system of claim 6, wherein an air filter resides in fluid communication with the clean air hose opposite the crankcase and the air filter includes an in-line back flow preventor.

9. The system of claim 6, further including a vacuum regulator in fluid communication with to the clean air hose to regulate vacuum in the crankcase.

10. The system of claim 6, wherein the clean air hose connects to the crankcase through an oil fill tube.

11. The system of claim 1, wherein the filter includes a clear portion for viewing liquids collected by the in-line filter.

12. The system of claim 1, wherein the fumes flow is restricted to limit the flow rate of the fumes flow.

13. The system of claim 12, wherein the fumes flow is restricted to result in a crankcase vacuum between approximately one pound and approximately four pounds.

14. The system of claim 1, further including an orifice for regulating the fumes flow through the fumes hose from the crankcase to the air intake.

15. The system of claim 14, wherein the orifice resides proximal to where the fumes hose connects to the air intake.

16. The system of claim 1, wherein the hydrogen hose and the fumes hose connect to the engine air intake at spaced apart points.

17. The system of claim 1, further including a compressor and air tank for providing compressed air to vehicle systems, the compressor receiving clean air from outside the engine.

18. A diesel cycle engine including a hydrogen augmented crankcase ventilation system, comprising:

a diesel cycle engine including;

an engine block;

at least one head attached to the engine block;

an engine air cleaner;

an air intake receiving air from the engine air cleaner;

a supercharger receiving air from the air intake;

an intake manifold receiving compressed air from the supercharger; and

an engine crankcase inside the engine block containing at least one of a set of crankcase fumes consisting of blow-by and fumes resulting from the breakdown of engine oil;

a hydrogen generator for generating hydrogen gas and oxygen gas;

a hydrogen hose connecting the hydrogen generator to the air intake, the hydrogen hose for carrying the hydrogen gas and the oxygen gas from the hydrogen generator to the engine air intake;

a fumes hose connecting the engine crankcase to the engine air intake, the fumes hose configured for carrying a fumes flow of crankcase fumes from the crankcase to the engine air intake, such that the hydrogen and fumes flows are combined together and joined with air received by the diesel cycle engine through the engine air intake;

a filter connected in-line with the fumes hose for filtering the fumes flow and collecting liquid from the fumes flow;

a drain line connected between the filter and the engine for draining the collected liquids back into the engine; and

a clean air hose connecting a second air cleaner to the engine crankcase to provide a clean air flow to the crankcase.

19. A diesel cycle engine including a hydrogen augmented crankcase ventilation system, comprising:

a diesel cycle engine including;

an engine block;

at least one head attached to the engine block;

an engine air cleaner;

an air intake receiving air from the engine air cleaner;

a supercharger receiving air from the air intake;

an intake manifold receiving compressed air from the supercharger and carrying the compressed air to the at least one head; and

an engine crankcase inside the engine block containing crankcase fumes consisting of at least one of blow-by and fumes resulting from the breakdown of engine oil;

a hydrogen generator for generating hydrogen gas and oxygen gas;

a hydrogen hose connecting the hydrogen generator to the air intake, the hydrogen hose for carrying the hydrogen gas and the oxygen gas from the hydrogen generator to the engine air intake;

a fumes hose connecting the engine crankcase to the engine air intake, which fumes hose carries a fumes flow of crankcase fumes from the crankcase to the engine air intake, such that the hydrogen and fumes flows are combined together and joined with air received by the diesel cycle engine through the engine air intake;

a filter connected in-line with the fumes hose for filtering the fumes flow and collecting liquid from the fumes flow;

a drain line connected between the filter and the engine for draining the collected liquids back into the engine; and

a clean air hose connecting a second air cleaner to the engine crankcase to provide a clean air of clean air to the crankcase.