Self-purging vehicle braking system

A vehicle braking system 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 comprising a master cylinder including a fluid reservoir for supplying brake fluid to the braking system, at least a pair of hydraulically controlled disk brakes, each of said disk brakes having a caliper including a plurality of cylinders and a plurality of respective hydraulically actuable brake pistons guided in said cylinders, an inlet brake line interconnecting said master cylinder to each of said calipers for supplying brake fluid to said calipers, an outlet brake line interconnecting said master cylinder to each of said calipers for receiving brake fluid from said calipers, and flow control means associated with and in fluid communication with said inlet and outlet brake lines and positioned remote from said calipers and closely adjacent said master cylinder for restricting fluid flow from said master cylinder only through said inlet brake line and for restricting fluid flow to said master cylinder only from said outlet brake line during operation of the braking system, said flow control means comprising a brake valve assembly having a housing, and first valve means positioned in said housing for restricting fluid flow therethrough to said inlet brake line in only one direction to thereby supply fluid flowing to each of said calipers and second valve means positioned in said housing for restricting fluid flow therethrough from said outlet brake line in only one direction to thereby receive fluid flowing from each of said calipers so that air entrapped in said brake lines is directed from said outlet brake line, through said flow control means, to said master cylinder positioned adjacent said flow control means, and toward said fluid reservoir of said master cylinder for removal of the air and thereby purge said brake lines of the air.

A vehicle braking system 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 comprising a master cylinder including a fluid reservoir for supplying brake fluid to the braking system, at least a pair of hydraulically controlled disk brakes, each of said disk brakes having a caliper including a plurality of cylinders and a plurality of respective hydraulically actuable brake pistons guided in said cylinders, an inlet brake line interconnecting said master cylinder to each of said calipers for supplying brake fluid to said calipers, an outlet brake line interconnecting said master cylinder to each of said calipers for receiving brake fluid from said calipers, and flow control means associated with and in fluid communication with said inlet and outlet brake lines and positioned remote from said calipers and about 4 inches from said master cylinder for restricting fluid flow from said master cylinder only through said inlet brake line and for restricting fluid flow to said master cylinder only from said outlet brake line during operation of the braking system, said flow control means comprising a brake valve assembly having a housing, and a first check valve positioned in said housing for restricting fluid flow therethrough to said inlet brake line in only one direction to thereby supply fluid flowing to each of said calipers and a second check valve positioned in said housing for restricting fluid flow therethrough from said outlet brake line in only one direction to thereby receive fluid flowing from each of said calipers so that air entrapped in said brake lines is directed from said outlet brake line, through said flow control means, to said master cylinder positioned adjacent said flow control means, and toward said fluid reservoir of said master cylinder for removal of the air and thereby purge said brake lines of the air.

A vehicle braking system for 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 comprising a master cylinder including a fluid reservoir for supplying brake fluid to the braking system, 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 said cylinders, an inlet brake line interconnecting said master cylinder and a lower portion of said caliper for supplying brake fluid to said caliper, an outlet brake line interconnecting said master cylinder and an upper portion of said caliper for receiving brake fluid from said caliper, said upper portion being positioned at a higher elevation than said lower portion, and flow control means associated with and being in fluid communication with said inlet and outlet brake lines and being positioned less than 15 inches from said master cylinder and between said caliper and said master cylinder for restricting fluid flow from said master cylinder only through said inlet brake line and for restricting return of fluid flow to said master cylinder only from said outlet brake line during operation of the braking system so that air entrapped in said brake lines is directed from said upper portion of said caliper, through said outlet brake line and said flow control means, to said master cylinder positioned less than 15 inches from said flow control means, and toward said fluid reservoir for removal of the air and thereby purge said brake lines of the air.

A vehicle braking system for 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 comprising a master cylinder including a fluid reservoir for supplying brake fluid to the braking system, 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 said cylinders, an inlet brake line interconnecting said master cylinder and a lower portion of said caliper for supplying brake fluid to said caliper, an outlet brake line interconnecting said master cylinder and an upper portion of said caliper for receiving brake fluid from said caliper, said upper portion being positioned at a higher elevation than said lower portion, and flow control means comprising a first check valve associated with and in fluid communication with said inlet brake line and a second check valve associated with and in fluid communications with said outlet brake line, each of said check valves comprises a perforated member through which fluid may readily flow and a resilient member cooperating with said perforated member for allowing fluid to flow in one direction through said perforated member and for preventing fluid from flowing through said perforated member in a direction opposite said one direction, said first and second check valves being positioned adjacent said master cylinder and between said caliper and said master cylinder for restricting fluid flow from said master cylinder through said inlet brake line and to said lower portion of said caliper and for restricting fluid flow from said upper portion of said caliper through said outlet brake line to said master cylinder during operation of the braking system so that air entrapped in said brake lines is directed from said upper portion of said caliper, through said outlet brake line and said second check valve, to said master cylinder positioned adjacent said second check valve, and toward said fluid reservoir of said master cylinder for removal of the air and thereby purge said brake lines of the air.