Train rail and train tracks

Abstract

A train rail includes an upper rail head, a lower rail head, a web, and at least one piezoelectric plate. The lower rail head is substantially parallel to the upper rail head. The web perpendicularly connects the upper rail head to the lower rail head. The at least one piezoelectric plate is positioned in the train rail and configured for producing electric power under pressure.

1 . A train rail comprising:
 an upper rail head;   a lower rail head substantially parallel to the upper rail head;   a web perpendicularly connecting the upper rail head to the lower rail head; and   at least one piezoelectric plate positioned in the train rail and configured for producing electric power under pressure.   
     
     
         2 . The train rail as claimed in  claim 1 , wherein the at least one piezoelectric plate comprises a first piezoelectric plate and a second piezoelectric plate, the first piezoelectric plate is arranged within the upper rail head, and the second piezoelectric plate is arranged within the lower rail head. 
     
     
         3 . The train rail as claimed in  claim 2 , wherein the upper rail head defines a first receiving groove, the lower rail head defines a second receiving groove, the first piezoelectric plate is received in the first receiving groove, and the second piezoelectric plate is received in the second receiving groove. 
     
     
         4 . The train rail as claimed in  claim 3 , wherein the length direction of the first receiving groove coincides with the length direction of the train rail, and the length direction of the second receiving groove coincides with the length direction of the train rail. 
     
     
         5 . The train rail as claimed in  claim 3 , wherein the depth of the first piezoelectric plate is less than half of the depth of the upper rail head, and the depth of the second piezoelectric plate is less than half of the depth of the lower rail head. 
     
     
         6 . The train rail as claimed in  claim 1 , wherein the at least one piezoelectric plate comprises two piezoelectric plates arranged at opposite sides of the web, the piezoelectric plates being perpendicular to the upper rail head and the lower rail head. 
     
     
         7 . The train rail as claimed in  claim 1 , wherein the at least one piezoelectric plate comprises one piezoelectric plates arranged at the lower rail head and is exposed at the lower rail head. 
     
     
         8 . The train rail as claimed in  claim 1 , wherein the at least one piezoelectric plate is made of a material selected from the group consisting of organic piezoelectric material, inorganic piezoelectric material, and compound piezoelectric material. 
     
     
         9 . A train track comprising:
 two train rails parallel to each other and laterally spaced apart one from the other, each train rail comprising:
 an upper rail head; 
 a lower rail head substantially parallel to the upper rail head; 
 a web perpendicularly connecting the upper rail head to the lower rail head; and 
 at least one piezoelectric plate positioned in the train rail and configured for producing electric power under pressure; and 
   a plurality of ties parallel to each other and arranged between the two train rails, each tie being perpendicular to the two train rails.   
     
     
         10 . The train track as claimed in  claim 9 , wherein the at least one piezoelectric plate comprises a first piezoelectric plate and a second piezoelectric plate, the first piezoelectric plate is arranged within the upper rail head, and the second piezoelectric plate is arranged within the lower rail head. 
     
     
         11 . The train track as claimed in  claim 10 , wherein the upper rail head defines a first receiving groove, the lower rail head defines a second receiving groove, the first piezoelectric plate is received in the first receiving groove, and the second piezoelectric plate is received in the second receiving groove. 
     
     
         12 . The train track as claimed in  claim 11 , wherein the length direction of the first receiving groove coincides with the length direction of the train rail, and the length direction of the second receiving groove coincides with the length direction of the train rail. 
     
     
         13 . The train track as claimed in  claim 11 , wherein the depth of the first piezoelectric plate is less than half of the depth of the upper rail head, and the depth of the second piezoelectric plate is less than half of the depth of the lower rail head. 
     
     
         14 . The train track as claimed in  claim 9 , wherein the at least one piezoelectric plate comprises two piezoelectric plates arranged at opposite sides of the web, the piezoelectric plates being perpendicular to the upper rail head and the lower rail head. 
     
     
         15 . The train track as claimed in  claim 9 , wherein the at least one piezoelectric plate comprises one piezoelectric plates arranged at the lower rail head and is exposed at the lower rail head. 
     
     
         16 . The train track as claimed in  claim 9 , wherein the at least one piezoelectric plate is made of a material selected from the group consisting of organic piezoelectric material, inorganic piezoelectric material, and compound piezoelectric material.