Piezoelectric actuated poppet valve to modulate pilot pressures and control main valve activation

A piezoelectric valve comprising:

• a valve body including a first end opposite a second end, a first plurality of passages in communication with a first chamber adjacent said first end and a second chamber adjacent said second end, and an interior space defined between and separating said first chamber with said second chamber;
• a poppet valve is receivable in said interior space in a fluid tight fit and slidable within said interior space, said poppet valve having a first end opposite a second end with said first end extending into said first chamber and said second end extending into said second chamber;
• a piezoelectric actuator is in contact with said second end of said poppet valve, said piezoelectric actuator is capable of sliding said poppet valve within said interior space when said piezoelectric actuator is actuated;
• a spring located in said first chamber and contacting said first end of said poppet valve to bias said second end of said poppet valve into a valve seat when said piezoelectric actuator is not actuated and said second end of said poppet valve is capable of preventing fluid communication through said first plurality of passages and said second chamber, wherein said piezoelectric actuator is actuated thereby moving said second end out of said valve seat and compressing said spring to permit fluid flow through said first plurality of passages and said second chamber thereby creating a first fluid flow path through said valve body.