Natural gas liquid power drive subtracts jolt squeeze cylinder that contracts

The utility model provides a natural gas liquid power drive subtracts jolt squeeze cylinder that contracts, natural gas compression cylinder is including compressing cylinder case, compression cylinder upper end cover and compression cylinder bottom end cover, and natural gas compression cylinder inner chamber is equipped with the suspension piston, be equipped with natural gas air flue, admissionvalve and discharge valve in the compression cylinder upper end cover, the one end of natural gas air flue and the gas compression chamber communicates with each other and corresponding with the frizzen of suspension piston upper end, the other end of natural gas air flue is respectively with the admission valve with discharge valve is perpendicular communicates with each other, and be equipped with position sensor I in natural gas air flue, be equipped with hydraulic oil oil duct and hydraulic oil interface in the compression cylinder bottom end cover, the one end and the liquid expansion chamber of hydraulic oil oi