Automotive fluid exchange system
AssigneeBG Products, Inc.
InventorsHarold E. Erwin, Abram B. Kuipers
Life of this patent
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Abstract
Disclosed is an apparatus and process for exchanging an engine fluid for maintenance purposes. The fluid is accessed through the engines reservoir for that particular fluid. Used fluid is removed simultaneously with the introduction of new fluid. In order to maintain a constant level of fluid in the reservoir, and thus, prevent overflow or cavitation problems, a control module is presented that enables the user to control the rate of new fluid flow into the reservoir relative to the rate of used fluid and to activate and deactivate the new and used fluid pumps. During operation, the module is located in close proximity to the reservoir such that the user is able to observe the fluid level while relating the flows.
Claims14
An apparatus for exchanging the fluid from a reservoir in a fluid system comprising:
- a delivery conduit for delivering fluid to the reservoir at a delivery flow rate;
- a removal conduit for removing fluid from the reservoir at a removal flow rate;
- a controller having a member being rotatable in first and second directions of rotation;
- said member, when rotated in said first direction increases said delivery flow rate while simultaneously decreasing said removal flow rate;
- and,
- said member, when the rotated in said second direction decreases said delivery flow rate while simultaneously increasing said removal flow rate.
An apparatus for exchanging the fluid from a reservoir in a fluid system comprising:
- means for delivering fluid to the reservoir at a delivery flow rate;
- means for removing fluid from the reservoir at a removal flow rate;
- means for a controlling said delivery and removal flow rates relative to one another so that a level of fluid within said reservoir may be maintained at a constant, wherein said controlling means comprises:
- an adjustment device which increases said delivery flow rate while decreasing said removal flow rate when rotated in a first direction and decreases said delivery flow rate while increasing said removal flow rate when rotated in a second direction.
Dependencies are inferred from the claim text.