IP Library Granted Patent US 6,941,901
Granted Patent B2
US 6,941,901 · App. 10/701,794 · Granted Sep 13, 2005

Injector for an internal combustion engine fueled with hydrogen gas

Assignee: DaimlerChrysler Corporation
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Quick Facts
Patent No.
US 6,941,901
App. No.
10/701,794
Granted
Sep 13, 2005
Kind
B2
Abstract

An injector for hydrogen gas for use in an internal combustion engine, the injector comprising a mixing chamber communicating with a cylinder of the internal combustion engine via an injector tip, where a water input port and a hydrogen input port feed individually into the mixing chamber. The water-hydrogen mix in the mixing chamber when injected into the cylinder comprises water atomized by hydrogen gas in a stratified water-hydrogen-air mix.

Claims (25)

1. An injector for hydrogen gas for use in an internal combustion engine, said injector comprising:

a mixing chamber communicating with a cylinder of said internal combustion engine via an injector tip;

a water input port feeding into said mixing chamber;

a water input solenoid incorporated to meter water into said mixing chamber at said water input port;

a hydrogen input port feeding into said mixing chamber;

a hydrogen input solenoid incorporated to meter hydrogen into said mixing chamber at said hydrogen input port, and

an injector tip solenoid incorporated to control injection of said mixing chamber contents into said cylinder.

2. The injector of claim 1 , further comprising:

a central processing unit operatively coupled to control the operation of said water input solenoid, said hydrogen input solenoid, and said injector solenoid.

3. The injector of claim 2 , where said central processing unit controls the operation of said water input solenoid and said hydrogen input solenoid to produce a water-hydrogen mix comprising water atomized by hydrogen in said mixing chamber.

4. The injector of claim 2 , where said central processing unit coordinates operation of said water input solenoid, said hydrogen input solenoid, said injection tip solenoid, with operation of said internal combustion engine to produce a stratified water-hydrogen-air mix in said cylinder.

5. The injector of claim 4 , further comprising:

at least one real time sensor configured to monitor said internal combustion engine and relay engine state information to said central processing unit.

6. The injector of claim 5 , where said stratified water-hydrogen-air mix is optimized by said central processing unit based on said engine state information.

7. An injector for hydrogen gas for use in an internal combustion engine, said injector comprising:

a mixing chamber communicating with a cylinder of said internal combustion engine via an injector tip incorporating an injection tip solenoid;

a water input port incorporating a water input solenoid feeding into said mixing chamber; and

a hydrogen input port feeding into said mixing chamber.

8. The injector of claim 7 , further comprising:

a central processing unit operatively coupled to control the operation of said water input solenoid, and said injector tip solenoid.

9. The injector of claim 8 , where said central processing unit controls the operation of said water input solenoid to produce a water-hydrogen mix comprising water atomized by hydrogen in said mixing chamber.

10. The injector of claim 8 , where said central processing unit coordinates operation of said water input solenoid and said injection tip solenoid, with operation of said internal combustion engine to produce a stratified water-hydrogen-air mix in said cylinder.

11. The injector of claim 10 , further comprising:

at least one real time sensor configured to monitor said internal combustion engine and relay engine state information to said central processing unit.

12. The injector of claim 11 , where said stratified water-hydrogen-air mix is optimized by said central processing unit based on said engine state information.

Assignments (20)
RELEASE OF SECURITY INTEREST Recorded Jan 24, 2019
From: JPMORGAN CHASE BANK, N.A.
To: FCA US LLC (FORMERLY KNOWN AS CHRYSLER GROUP LLC)
Reel/Frame 048177/0356 →
RELEASE OF SECURITY INTEREST Recorded May 30, 2017
From: CITIBANK, N.A.
To: FCA US LLC (FORMERLY KNOWN AS CHRYSLER GROUP LLC)
Reel/Frame 042885/0255 →
RELEASE OF SECURITY INTEREST RELEASING SECOND-LIEN SECURITY INTEREST PREVIOUSLY RECORDED AT REEL 026426 AND FRAME 0644, REEL 026435 AND FRAME 0652, AND REEL 032384 AND FRAME 0591 Recorded Feb 11, 2016
From: CITIBANK, N.A.
To: FCA US LLC, FORMERLY KNOWN AS CHRYSLER GROUP LLC
Reel/Frame 037784/0001 →
CHANGE OF NAME Recorded Apr 30, 2015
From: CHRYSLER GROUP LLC
To: FCA US LLC
Reel/Frame 035553/0356 →
SECURITY AGREEMENT Recorded Mar 4, 2014
From: CHRYSLER GROUP LLC
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 032384/0640 →
SECURITY AGREEMENT Recorded Jun 13, 2011
From: CHRYSLER GROUP LLC
To: CITIBANK, N.A.
Reel/Frame 026435/0652 →
SECURITY AGREEMENT Recorded Jun 7, 2011
From: CHRYSLER GROUP LLC
To: CITIBANK, N.A.
Reel/Frame 026404/0123 →
RELEASE OF SECURITY INTEREST Recorded May 26, 2011
From: THE UNITED STATES DEPARTMENT OF THE TREASURY
To: CHRYSLER GROUP LLC; CHRYSLER GROUP GLOBAL ELECTRIC MOTORCARS LLC
Reel/Frame 026343/0298 →
CHANGE OF NAME Recorded Jul 7, 2009
From: NEW CARCO ACQUISITION LLC
To: CHRYSLER GROUP LLC
Reel/Frame 022919/0126 →
RELEASE OF SECURITY INTEREST IN PATENT RIGHTS - FIRST PRIORITY Recorded Jul 6, 2009
From: WILMINGTON TRUST COMPANY
To: CHRYSLER LLC
Reel/Frame 022910/0498 →
SECURITY AGREEMENT Recorded Jul 6, 2009
From: NEW CARCO ACQUISITION LLC
To: THE UNITED STATES DEPARTMENT OF THE TREASURY
Reel/Frame 022915/0489 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 6, 2009
From: CHRYSLER LLC
To: NEW CARCO ACQUISITION LLC
Reel/Frame 022915/0001 →
RELEASE OF SECURITY INTEREST IN PATENT RIGHTS - SECOND PRIORITY Recorded Jul 6, 2009
From: WILMINGTON TRUST COMPANY
To: CHRYSLER LLC
Reel/Frame 022910/0740 →
RELEASE OF SECURITY INTEREST Recorded Jul 1, 2009
From: US DEPARTMENT OF THE TREASURY
To: CHRYSLER LLC
Reel/Frame 022902/0310 →
GRANT OF SECURITY INTEREST IN PATENT RIGHTS - THIR Recorded Jan 14, 2009
From: CHRYSLER LLC
To: US DEPARTMENT OF THE TREASURY
Reel/Frame 022259/0188 →
CHANGE OF NAME Recorded Nov 13, 2008
From: DAIMLERCHRYSLER COMPANY LLC
To: CHRYSLER LLC
Reel/Frame 021826/0001 →
CHANGE OF NAME Recorded Nov 4, 2008
From: DAIMLERCHRYSLER CORPORATION
To: DAIMLERCHRYSLER COMPANY LLC
Reel/Frame 021779/0793 →
GRANT OF SECURITY INTEREST IN PATENT RIGHTS - SECOND PRIORITY Recorded Aug 30, 2007
From: CHRYSLER LLC
To: WILMINGTON TRUST COMPANY
Reel/Frame 019767/0810 →
GRANT OF SECURITY INTEREST IN PATENT RIGHTS - FIRST PRIORITY Recorded Aug 29, 2007
From: CHRYSLER LLC
To: WILMINGTON TRUST COMPANY
Reel/Frame 019773/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 13, 2004
From: TAXON, MORSE N
To: DAIMLERCHRYSLER CORPORATION
Reel/Frame 014336/0896 →
Continuity (2)
Provisional Application 6046923100 · May 9, 2003
Related Publication 20040221821A1 · Nov 11, 2004