Fluid change system

A quick fluid change system for changing fluid in a fluid utilizing device comprising a portable unit and a recharge unit:

• said portable unit comprising;
• a tank arrangement having a used fluid tank adapted to store used fluid at a low pressure, a new fluid tank adapted to store new fluid and a compressed inert gas, and a compressed air tank;
• a plurality of recharge ports with valve means connected with piping to said tank arrangement through which (a) said new fluid tank is adapted to be refilled with new fluid and recharged with pressurized inert gas, (b) said used fluid tank is adapted to be emptied of used fluid and placed under vacuum, (c) and said compressed air tank is adapted to be refilled with compressed air, said valve means of said recharge ports controlling the ingress and egress of materials therethrough;
• a hose for evacuation of used fluids from and delivery of new fluid to the fluid utilizing device;
• a venturi which is connected to said compressed air tank and to said used fluid tank, and operable by a valve means to permit a user of the quick fluid change system to put extra vacuum on said used fluid tank;
• and
• a housing portion into which said tank arrangement, said plurality of recharge ports and valve means, and said venturi are located;
• said recharge portion comprising a station into which said portable unit is engageable;
• a recharge port engagement manifold having a number of transfer ports which are engageable with said recharge ports of said portable portion and when engaged open up said valve means of said recharge ports;
• a plurality of valves for controlling flow of fluid through said plurality of transfer ports;
• sources of compressed air, inert gas, vacuum, and new fluid, and a container for the used fluid collected from said used fluid tank of said portable unit;
• and
• a control means which controls a recharge sequence of said portable unit during which waste fluid is evacuated from said used fluid tank and it is placed under vacuum, said compressed air tank is refilled with compressed air, and said new fluid tank is refilled with new fluid and inert gas to ready said portable unit for reuse.

A quick oil change system for use in changing oil from a machine, comprising:

• a tank arrangement with a used oil tank for storing waste oil and vacuum, a new oil tank for storing new oil and compressed inert gas, and a compressed air tank for holding compressed air;
• a plurality of recharge ports connected with recharge piping to said tank arrangement through which (a) said new oil tank is adapted to be refilled with new oil and recharged with pressurized inert gas, (b) said used oil tank is adapted to be emptied of waste oil and placed under a vacuum, and (c) said compressed air tank is adapted to be refilled with compressed air, said plurality of recharge ports having valves to control the ingress and egress of fluids and air therethrough;
• a hose for evacuation of used oil from and delivery of new oil to the machine;
• a control valve means connected by pipes to said new oil tank, to said used oil tank, and to said compressed oil tank, said control valve means being adapted to allow a user to selectively (a) open a pipe between said waste oil tank and said hose to permit waste oil to be evacuated from the vehicle, and (b) open a pipe between said new fluid tank and said hose to permit new fluid to be delivered to the vehicle;
• a venturi which is connected to said compressed air tank and to said waste oil tank, and operable by a valve means to permit the user to put extra vacuum on said oil tank;
• and
• a housing portion into which said tank arrangement, said plurality or recharge ports, said control valve means and said venturi and all piping are contained.