US2003052041A1PendingUtilityA1

Fuels for homogeneous charge compression ignition engines

35
Assignee: SOUTHWEST RES INSTPriority: Sep 18, 2001Filed: Sep 18, 2002Published: Mar 20, 2003
Est. expirySep 18, 2021(expired)· nominal 20-yr term from priority
Inventors:Jimell ErwinThomas W. Ryan, IiiRudolf H. Stanglmaier
F02B 1/12C10L 1/08
35
PatentIndex Score
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Claims

Abstract

A fuel for a homogeneous charge compression ignition engine having a 95 V% distilled temperature by boiling point measurement in the range of about 35° C. to about 350° C., a cetane number in the range of about 2 to about 120, and an octane number in the range of 10 to about 110. The invention also relates to a method of operating a homogeneous charge compression ignition engine of mixing a fuel with air and feeding the fuel into a combustion chamber

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A fuel for a homogeneous charge compression ignition engine having a 95% ASTM D 86 boiling point of about 35° C. to about 350° C., a cetane number in the range of about 2 to about 170, and an octane number in the range of about 2 to about 110.  
     
     
         2 . The fuel according to  claim 1 , wherein the 95% ASTM D 86 boiling point is about 180° C. to about 350° C.  
     
     
         3 . The fuel according to  claim 2 , wherein the 95% ASTM D 86 boiling point is about 225° C. to about 350° C.  
     
     
         4 . The fuel according to  claim 1 , wherein the cetane number is from about 47 to about 170.  
     
     
         5 . The fuel according to  claim 1 , wherein the cetane number is from about 20 to about 70.  
     
     
         6 . The fuel according to  claim 1 , wherein the cetane number is from about 2 to about 20.  
     
     
         7 . The fuel according to  claim 4 , wherein the octane number is from about 2 to about 24.  
     
     
         8 . The fuel according to  claim 5 , wherein the octane number is from about 12 to about 82.  
     
     
         9 . The fuel according to  claim 6 , wherein the octane number is from about 63 to about 110.  
     
     
         10 . A fuel for a homogeneous charge compression ignition engine having an elevated pressure autoignition temperature, or an equivalent measure, of about 400° C. to about 800° C.  
     
     
         11 . A method of operating a homogeneous charge compression ignition engine comprising mixing a fuel with air and feeding the fuel into a combustion chamber of the homogeneous charge compression ignition engine, wherein the fuel comprises a 95% ASTM D 86 boiling point of about 35° C. to about 350° C., a cetane number in the range of about 2 to about 170, and an octane number in the range of about 2 to about 110.  
     
     
         12 . The method according to  claim 11 , wherein the 95% ASTM D 86 boiling point is about 180° C. to about 350° C.  
     
     
         13 . The method according to  claim 12 , wherein the 95% ASTM D 86 boiling point is about 225° C. to about 350° C.  
     
     
         14 . The method according to  claim 11 , wherein the cetane number is from about 47 to about 170.  
     
     
         15 . The method according to  claim 11 , wherein the cetane number is from about 20 to about 70.  
     
     
         16 . The method according to  claim 11 , wherein the cetane number is from about 2 to about 20.  
     
     
         17 . The method according to  claim 14 , wherein the octane number is from about 2 to about 24.  
     
     
         18 . The method according to  claim 15 , wherein the octane number is from about 12 to about 82.  
     
     
         19 . The method according to  claim 16 , wherein the octane number is from about 63 to about 110.  
     
     
         20 . The method according to  claim 11 , having an elevated pressure autoignition temperature, or an equivalent measure, in the range of 400° C. to 800° C.  
     
     
         21 . The method according to  claim 11 , wherein the fuel is controlled by one or more special purpose integrated circuits.  
     
     
         22 . A method of operating a homogeneous charge compression ignition engine comprising mixing a fuel with air and feeding the fuel into a combustion chamber of the homogeneous charge compression ignition engine, wherein the fuel comprises a 95% ASTM D 86 boiling point of about 185° C. to about 350° C., a cetane number in the range of about 2 to about 160, and an octane number in the range of 2 to about 103.  
     
     
         23 . The method according to  claim 16 , wherein the feeding of the fuel is controlled by one or more integrated circuits selected from the group consisting of programmable logic devices PLDs, programmable logic arrays PLAs or special purpose control devices.

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