Pressure boost system

A boost system comprising:

• a cylinder head;
• a piston including a piston rod that extends through the cylinder head, the piston including first and second piston heads positioned on opposite sides of the cylinder head, wherein a first hydraulic chamber is defined between a rod side of the first piston head and the cylinder head and wherein a second hydraulic chamber is defined between a rod side of the second piston head and the cylinder head;
• a first gas chamber defined in part by a non-rod side of the first piston head and a second gas chamber defined in part by a non-rod side of the second piston head;
• a third hydraulic chamber separated from the first gas chamber by a third piston head, wherein a first side of the third piston head is exposed to the first gas chamber and wherein a second side of the third piston head is exposed to the third hydraulic chamber;
• a first hydraulic accumulator in fluid communication with the third hydraulic chamber;
• a fourth hydraulic chamber separated from the second gas chamber by a fourth piston head, wherein a first side of the fourth piston head is exposed to the second gas chamber and wherein a second side of the fourth piston head is exposed to the fourth hydraulic chamber;
• a second hydraulic accumulator in fluid communication with the fourth hydraulic chamber,
• wherein gas pressure in the first gas chamber causes the piston to move in a first direction causing hydraulic fluid having boosted pressure to be output from the first hydraulic chamber, wherein when the piston moves in the first direction the first hydraulic accumulator causes the third piston head to also move in the first direction such that gas pressure is maintained in the first gas chamber;
• and
• wherein gas pressure in the second gas chamber causes the piston to move in a second direction causing hydraulic fluid having boosted pressure to be output from the second hydraulic chamber, wherein when the piston moves in the second direction the second hydraulic accumulator causes the fourth piston head to also move in the second direction such that gas pressure is maintained in the second gas chamber.