Brake system damping device with a passage in a separating element

Patent metadata

Field	Value
Publication number	US-11434963-B2
Application number	US-202016994912-A
Country	US
Kind code	B2
Filing date	Aug 17, 2020
Priority date	Aug 19, 2019
Publication date	Sep 6, 2022
Grant date	Sep 6, 2022

Abstract

A brake system damping device includes a first space, a second space, a third space, a first separating element, a second separating element, a closure element, and a plug-type element. The first space is configured to have hydraulic pressure applied thereto. A compressible medium is situated in the second space and the third space. The first separating element separates the first space from the second space, and the second separating element separates the second space from the third space. The second space is connected in medium-conducting fashion to the third space by a passage formed in the second separating element. The closure element is configured to be moved with the first separating element so as to close the passage in a movement direction as soon as the hydraulic pressure has reached a predefined pressure value in the first space. The plug-type element is arranged in the passage.

First claim

What is claimed is:

1. A brake system damping device, comprising:
a first space configured to have hydraulic pressure applied thereto;
a second space in which a compressible medium is situated;
a first separating element configured to separate the first space from the second space;
a third space in which a compressible medium is situated;
a second separating element configured to separate the second space from the third space, the second space connected in medium-conducting fashion to the third space by a passage formed in the second separating element;
a closure element configured to move with the first separating element so as to close the passage in a movement direction as soon as the hydraulic pressure has reached a predefined pressure value in the first space; and
a plug element arranged in the passage,
wherein the plug element has a convex cap at a side of the plug element facing toward the second space.

2. A brake system damping device, comprising:
a first space configured to have hydraulic pressure applied thereto;
a second space in which a compressible medium is situated;
a first separating element configured to separate the first space from the second space;
a third space in which a compressible medium is situated;
a second separating element configured to separate the second space from the third space, the second space connected in medium-conducting fashion to the third space by a passage formed in the second separating element;
a closure element configured to move with the first separating element so as to close the passage in a movement direction as soon as the hydraulic pressure has reached a predefined pressure value in the first space; and
a plug element arranged in the passage,
wherein the plug element is mushroom-shaped and has a mushroom head at a side of the plug element facing toward the second space.

3. A brake system damping device, comprising:
a first space configured to have hydraulic pressure applied thereto;
a second space in which a compressible medium is situated;
a first separating element configured to separate the first space from the second space;
a third space in which a compressible medium is situated;
a second separating element configured to separate the second space from the third space, the second space connected in medium-conducting fashion to the third space by a passage formed in the second separating element;
a closure element configured to move with the first separating element so as to close the passage in a movement direction as soon as the hydraulic pressure has reached a predefined pressure value in the first space; and
a plug element arranged in the passage,
wherein the plug element defines at least one passage opening at a side of the plug element facing toward the second space, the at least one passage opening having a cross-sectional area that is oriented substantially in the movement direction of the closure element.

4. The brake system damping device according to claim 3 , wherein the at least one passage opening is configured as a slot.

5. The brake system damping device according to claim 3 , wherein the at least one passage opening is two to four passage openings.

6. A brake system damping device, comprising:
a first space configured to have hydraulic pressure applied thereto;
a second space in which a compressible medium is situated;
a first separating element configured to separate the first space from the second space;
a third space in which a compressible medium is situated;
a second separating element configured to separate the second space from the third space, the second space connected in medium-conducting fashion to the third space by a passage formed in the second separating element;
a closure element configured to move with the first separating element so as to close the passage in a movement direction as soon as the hydraulic pressure has reached a predefined pressure value in the first space; and
a plug element arranged in the passage,
wherein the plug element has at least one detent hook at a side of the plug element facing toward the third space.

7. The brake system damping device according to claim 1 , wherein the second separating element is formed from metal, and wherein the plug element is formed from plastic.

8. The brake system damping device according to claim 1 , wherein the first separating element is configured with a diaphragm.

9. The brake system damping device according to claim 1 , wherein the first separating element is formed from an elastomer.

10. The brake system damping device according to claim 3 , wherein the at least one passage opening is three passage openings.

11. The brake system damping device according to claim 5 , wherein the two to four passage openings are spaced circumferentially from one another.

12. The brake system damping device according to claim 8 , wherein the diaphragm is a rolling diaphragm.

13. The brake system damping device according to claim 9 , wherein the elastomer is ethylene propylene diene monomer.

14. The brake system damping device according to claim 10 , wherein the three passage openings are spaced circumferentially from one another.

Assignees

• Bosch Gmbh Robert

Inventors

• Kurz Edgar
• Schuller Wolfgang

Classifications

• B60T11/107 Primary

  overrun brakes with fluid means · CPC title

• F16D65/0006 Primary

  Noise or vibration control · CPC title

• F16F9/04

  in a chamber with a flexible wall {(producing hollow articles of plastics, e.g. air bellows, B29D22/00)} · CPC title

• B60T11/16

  Master control, e.g. master cylinders (master cylinders associated with vacuum boosters B60T13/565) · CPC title

• B60T17/04

  Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses (traction couplings involving joints for supply lines, electric circuits, or the like B60D1/62; couplings peculiar to railway vehicles for, or combined with, couplings or connectors for fluid conduits or electric cables B61G5/06; pipes, cut-off valves, couplings, air hoses per se F16C, F16K, F16L) · CPC title