초록 ▼

A double-acting reciprocating motor with uni-directional fluid flow path comprises a piston disposed within a cylinder. A first chamber is defined by the cylinder space between the piston and a cylinder base. A second chamber is defined by the cylinder space between the piston and a cylinder head. F

A double-acting reciprocating motor with uni-directional fluid flow path comprises a piston disposed within a cylinder. A first chamber is defined by the cylinder space between the piston and a cylinder base. A second chamber is defined by the cylinder space between the piston and a cylinder head. Fluid is introduced into the motor through an inlet port and into the first chamber. A pass-through valve controls the flow of fluid from the first chamber to the second chamber. An outlet valve regulates the draining of fluid from the second chamber through an outlet port. The outlet port and the inlet port are associated with opposite ends of the motor. Differential fluid pressure urges the piston towards the cylinder head when the pass-through valve is closed and the outlet valve is open. The piston surface facing the second chamber is larger than the piston surface facing the first chamber, so the piston moves towards the cylinder base when the pass-through valve is open and the outlet valve is closed.

대표청구항 ▼

1. A double-acting reciprocating motor with a uni-directional flow path, said motor comprising:a housing having a hollow cylinder disposed between a cylinder head and a cylinder base, a piston disposed within said cylinder between said cylinder head and cylinder base, said piston having a first pres

1. A double-acting reciprocating motor with a uni-directional flow path, said motor comprising:a housing having a hollow cylinder disposed between a cylinder head and a cylinder base, a piston disposed within said cylinder between said cylinder head and cylinder base, said piston having a first pressure surface area and a second pressure surface area opposite to and larger than said first pressure surface area, a piston rod operatively associated with said piston and extending from said piston through said cylinder base, fluid inlet for directing uni-directional fluid flow to a first chamber within said cylinder associated with said first surface area, a fluid outlet for draining fluid from a second chamber within said cylinder associated with said second surface area, a fluid passageway disposed within said piston, said fluid passageway fluidly connecting said first chamber to said second chamber, a pass-through valve for selectively opening and closing said fluid passageway, and an outlet valve that is openable for draining fluid from said outlet when said pass-through valve is in the closed position.