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US 4,673,223 AGranted
Deceleration responsive braking corrector
AssigneeBendix France
InventorsJean-Jacques Carre, Roland Levrai
Life of this patent
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AssigneeBendix France
InventorsJean-Jacques Carre, Roland Levrai
Estimating the term…
Braking corrector dependent upon deceleration, for the braking system of a vehicle, comprising a body (10, 11) defining a chamber (13), an inlet port (26) connected to the chamber (13) and intended to be connected to a source of fluid under pressure, an outlet port (42) connected to the chamber (13) and intended to be connected to the brakes of the vehicle, a mass (34) which is slidably mounted in the chamber (13) and which is sensitive to the deceleration of the vehicle, a valve mechanism (44) capable of cooperating with the mass (34) so as to close the passage between the inlet port (26) and the outlet port (42) when the mass (34) moves under the effect of deceleration, a first spring mechanism (38) normally urging the mass (34) toward a rest position opening the passage between the inlet port (26) and the outlet port (42), and a second spring mechanism (20), characterized in that the second spring mechanism (20) is stronger than the first spring mechanism (38) and opposes the movement of the mass until a condition exists which is determined by a combination of the deceleration to which the mass is subjected and the pressure in the chamber.
A deceleration-responsive braking corrector for the braking system of a vehicle, comprising a body defining a chamber, an inlet port to be connected to a source of fluid pressure, an outlet port connected with the chamber and intended to be connected with brakes of the vehicle, a passage between the ports and communicating with the chamber, a mass mounted slidably in the chamber and responsive to deceleration of the vehicle, valve means capable of cooperating with the mass to close the passage between the ports when the mass moves under the effect of the deceleration of the vehicle, first spring means normally urging the mass in one direction toward a rest position and opening the passage between the ports, and second spring means disposed within the body, characterized in that the first spring means and second spring means both urge the mass in the one direction toward the rest position and opening the passage, the body including a bore having a piston disposed slidably therein, the piston having a seal thereabout and biased by the second spring means into engagement with the mass, and the mass mounted slidably on a shaft having therein an opening, the opening forming a part of the passage between the ports.
A deceleration-responsive braking corrector for the braking system of a vehicle, comprising a body defining a chamber, an inlet port to be connected to a source of fluid pressure, an outlet port connected with the chamber and intended to be connected with brakes of the vehicle, a passage between the ports and communicating with the chamber, a mass mounted slidably in the chamber and responsive to deceleration of the vehicle, valve means capable of cooperating with the mass to close the passage between the ports when the mass moves under the effect of the deceleration of the vehicle, first spring means normally urging the mass in one direction toward a rest position and opening the passage between the ports, and second spring means disposed within the body, characterized in that the first spring means and second spring means both urge the mass in the one direction toward the rest position and opening the passage, the body including a bore having a piston disposed slidably therein, the piston having a seal thereabout and biased by the second spring means into engagement with the mass, the second spring means comprising two coaxial springs, and the mass mounted slidably on a shaft having therein an opening, the opening forming a part of the passage between the ports.
A deceleration-responsive braking corrector for the braking system of a vehicle, comprising a body defining a chamber, an inlet port to be connected to a source of fluid pressure, an outlet port connected with the chamber and intended to be connected with brakes of the vehicle, a passage between the ports and communicating with the chamber, a mass mounted slidably in the chamber and responsive to deceleration of the vehicle, valve means capable of cooperating with the mass to close the passage between the ports when the mass moves under the effect of the deceleration of the vehicle, first spring means normally urging the mass in one direction toward a rest position and opening the passage between the ports, and second spring means disposed within the body, characterized in that the first spring means and second spring means both urge the mass in the one direction toward the rest position and opening the passage, the body including a bore having a piston disposed slidably therein, the piston having a seal thereabout and biased by the second spring means into engagement with the mass, the second spring means comprising two coaxial springs, one of the two coaxial springs located within the other of the two coaxial springs, the mass including a groove having an abutment, and the piston having a head disposed in the groove.
Dependencies are inferred from the claim text.