Direct combustion type plunger hydraulic pump

Abstract

A direct-fired plunger hydraulic pump, comprising a combustor (1), a high-temperature heat exchanger (2), a steam chamber (3), at least one cylinder plunger mechanism (10), a steam refrigerator (15) and a control system, wherein the high-temperature heat exchanger (2) is connected with the combustor (1) through a pipe; the steam chamber (3) is a sealed container, in which a water nozzle (4) is arranged above the high-temperature heat exchanger (2); the cylinder plunger mechanism (10) is mounted above the steam chamber (3) and mainly consists of a cylinder (20) and a plunger (21); a piston of the cylinder (20) is connected with a piston of the plunger (21) through a mandril (30) with a reset mechanism; an inlet valve (22) communicated with the steam chamber (3) is provided at the bottom end of the cylinder (20), and an exhaust valve (23) is provided on a side wall of the cylinder (20); an oil outlet and an oil inlet are provided at the top end of the plunger (21); the exhaust valve (23) is connected with the steam refrigerator (15) through an exhaust pipe (14); and the refrigerator (15) is connected with a water tank (8). The direct-fired plunger hydraulic pump has the advantages of simple structure, energy conservation and high efficiency, and most of the thermal energy generated by fuel provides hydraulic machines with power by heat exchange so that the energy consumption is small.

Description

TECHNICAL FIELD OF THE INVENTION[0001]The disclosure relates to the field of hydraulic power, in particular to a direct-fired plunger hydraulic pump which uses fuel to directly convert thermal energy into hydraulic energy.BACKGROUND OF THE INVENTION[0002]With the mature application of the hydraulic technology, more and more mechanical equipment completely utilizes hydraulic energy as the driving power, such as a hydraulic excavator, a full-hydraulic road roller, a hydraulic drill, a full-hydraulic forklift, and so on, with the common characteristics as follows: no the traditional mechanical transmission mechanism, and all the mechanical actions are completed by driving a hydraulic motor and a hydraulic cylinder through hydraulic energy. The hydraulic pump is a power component for providing hydraulic energy and functions to convert the mechanical energy of a prime mover into hydraulic energy to provide power for the whole hydraulic system. The hydraulic pump is generally in a structu...

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