초록 ▼

Motor apparatus which converts hydraulic energy and change of state heat energy to mechanical energy. The motor includes a main chamber divided by a piston into first and second portions. During a first half cycle or hydraulic power stroke, a valve places the first portion of the chamber in fluid co

Motor apparatus which converts hydraulic energy and change of state heat energy to mechanical energy. The motor includes a main chamber divided by a piston into first and second portions. During a first half cycle or hydraulic power stroke, a valve places the first portion of the chamber in fluid communication with a source of pressurized, saturated liquid and the second portion of the chamber in fluid communication with a drain port. A switch senses the end of the hydraulic power stroke and causes the valve to move to a second position wherein the first and second portions of the chamber are placed in fluid communication with one another to form a common motor chamber and drive the piston in an expansion power stroke. Power is derived from the working fluid during the piston stroke in each direction. The motor finds particular application for energy recovery in an absorption refrigeration system.

대표청구항 ▼

A motor for powering a use device, said motor using pressurized, saturated or near saturated liquid fluid from a source as input and exhausting said fluid when expended to a drain, said motor comprising: a block; a driven member operably mounted with respect to said block; means for driving said dri

A motor for powering a use device, said motor using pressurized, saturated or near saturated liquid fluid from a source as input and exhausting said fluid when expended to a drain, said motor comprising: a block; a driven member operably mounted with respect to said block; means for driving said driven member, said driving means including means for metering a discrete quantity of said liquid fluid from said source to drive said driven member in a first direction through a hydraulic power stoke, said driving means further including means for expanding said quantity of said metered liquid fluid wherein at least a portion of said liquid fluid changes phase to drive said driven member in a second direction opposite to the first direction through an expansion power stroke; means for controlling said driving means; and means for transferring to said use device energy from said driven member.