Back to results
US 5,310,252 AGranted
Brake valve assembly for purging air from brake lines
AssigneeStewart Components
InventorHoward C. Stewart, Jr.
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeStewart Components
InventorHoward C. Stewart, Jr.
Estimating the term…
A vehicle braking system is characterized by being constructed for self-purging and removal of air from the brake lines to thereby prevent the accumulation of air therein so as to provide a more effective braking system. The braking system has a master cylinder including a fluid reservoir for supplying brake fluid to the braking system and a hydraulically controlled disk brake having a caliper including a plurality of cylinders arranged in the caliper and a plurality of respective hydraulically actuable brake pistons guided in the cylinders. An inlet brake line interconnects the master cylinder and the caliper for supplying brake fluid to the caliper and an outlet brake line also interconnects the master cylinder and the caliper for receiving brake fluid from the caliper. The flow control assembly of the present invention has a housing having a first opening connecting an inlet brake line thereto, a second opening connecting an outlet brake line thereto, and a third opening connecting a master cylinder of the braking system thereto. A first check valve is positioned within the housing for allowing fluid to flow therethrough in only one direction, and a second check valve is positioned within the housing for allowing fluid to flow therethrough in only a common direction as the fluid flow through the first check valve.
A brake valve assembly adapted to connect to a vehicle braking system for removing air from the brake lines therein, the brake valve assembly comprising a housing having a first opening adapted for connecting an inlet brake line thereto, a second opening adapted for connecting an outlet brake line thereto, a third opening adapted for connecting a master cylinder of the braking system thereto, an expansion chamber positioned within said housing and communicating with all of said openings for receiving fluid therein, and first and second valve means positioned within said housing in communication with said expansion chamber and being in fluid communication with each other within said housing, said first valve means constructed for allowing fluid to flow therethrough in only one direction and through said first opening, and said second valve means constructed for allowing fluid to flow therethrough and through said second opening and in a common direction as the fluid flow through said first valve means.
A brake valve assembly adapted to connect to a vehicle braking system for removing air from the brake lines therein, the brake valve assembly comprising a housing having a substantially cylindrical overall shape, having a first opening in an end of said housing adapted for connecting an inlet brake line thereto, a second opening in an opposite end of said housing adapted for connecting an outlet brake line thereto, said first and second openings being in substantial alignment, a third opening extending laterally of said first and second openings and positioned in a medial portion of said housing adapted for connecting a master cylinder of the braking system thereto, an expansion chamber positioned within said housing and communicating with all of said openings for receiving fluid therein, and first and second check valves positioned within said housing in communication with said expansion chamber and being in fluid communication with each other within said housing, said first check valve constructed for allowing fluid to flow therethrough in only one direction and through said first opening, and said second check valve constructed for allowing fluid to flow therethrough and through said second opening and in a common direction as the fluid flow through said first valve means, said first and second check valves facing in a common direction toward said second opening, resilient means positioned between said first and second check valves and within said expansion chamber to maintain said check valves in a predetermined aligned position.
A brake valve assembly adapted to connect to a vehicle braking system for removing air from the brake lines therein, the brake valve assembly comprising a housing having a substantially cylindrical overall shape, having a first opening in an end of said housing adapted for connecting an inlet brake line thereto, a second opening in an opposite end of said housing adapted for connecting an outlet brake line thereto, said first and second openings being in substantial alignment, a third opening extending laterally of said first and second openings and positioned in a medial portion of said housing adapted for connecting a master cylinder of the braking system thereto, an expansion chamber positioned within said housing and accessible by all of said openings for receiving fluid therein, and first and second check valves positioned within said housing in communication with said expansion chamber and being in fluid communication with each other, said first check valve constructed for allowing fluid to flow therethrough in only one direction and through said first opening, and said second check valve constructed for allowing fluid to flow therethrough and through said second opening and in a common direction as the fluid flow through said first valve means, said first and second check valves facing in a common direction toward said second opening and each comprising a dome shaped outer housing having a plurality of holes therein and an inner housing having a lesser plurality of holes therein than said outer housing, said inner housing being positioned within said outer housing, resilient means positioned between said outer and inner housings and covering said plurality of holes in said outer housing so that fluid flow is prevented when flowing through said holes of said inner housing toward said outer housing and is allowed when flowing through said holes of said outer housing toward said inner housing, a coiled spring positioned between said first and second check valves and within said expansion chamber to maintain said check valves in a predetermined aligned position within said housing of the brake valve assembly.
A brake valve assembly adapted to connect to a vehicle braking system for removing air from the brake lines therein, the brake valve assembly comprising a housing having a first opening adapted to be connected to an inlet brake line thereto, a second opening adapted to be connected to an outlet brake line thereto, a third opening adapted to be connected to a master cylinder of the braking system thereto, an expansion chamber positioned within said housing and communicating with all of said openings for receiving fluid therein, said expansion chamber having a larger diameter than said first, second, or third openings, and first and second valve means positioned within said housing in communication with said expansion chamber and being in fluid communication with each other within said housing, said first valve means constructed for allowing fluid to flow therethrough in only one direction and through said first opening, and said second valve means constructed for allowing fluid to flow therethrough and through said second opening and in a common direction as the fluid flow through said first valve means.
Dependencies are inferred from the claim text.