Transmission control device

Patent metadata

Field	Value
Publication number	US-10767758-B2
Application number	US-201615738788-A
Country	US
Kind code	B2
Filing date	Jun 29, 2016
Priority date	Jun 29, 2015
Publication date	Sep 8, 2020
Grant date	Sep 8, 2020

Abstract

Transmission control devices may have two control boxes, and a planar transmission control plate disposed between the two control boxes. The transmission control plate seals the intermediate space between the two control boxes or the channel portions and borings thereof in the form of a flat gasket. The plate also makes available throughflow-openings between channels or borings in the control boxes for a fluid, the fluid in the channels controlling the function of a transmission. The sealing function is achieved by embossed beads and/or partial coatings.

First claim

The invention claimed is:

1. A transmission control device, having two counter-components which are disposed opposite each other, and also a planar transmission control plate which is disposed between surfaces of the two counter-components which are situated opposite each other, comprising:
fluid channels which extend between adjacently disposed surfaces respectively of one counter-component and of the transmission control plate parallel to the plane of the respective surfaces, and/or borings which extend perpendicularly or essentially perpendicularly to the plane of the respective surface being configured, the transmission control plate having at least one throughflow-opening for a fluid, which opening penetrates the transmission control plate and connects together said fluid channels which extend on different sides of the transmission control plate or said borings which extend on different sides of the transmission control plate or just one of said fluid channels which extends on one side of the transmission control plate with just one of said borings which extends on the oppositely situated side of the transmission control plate,
the transmission control plate having at least one planar carrier layer with a first surface which is orientated towards the first counter-component, and with a second surface which is situated opposite the first surface and orientated towards the second counter-component, a first functional layer which is disposed adjacent to the first surface and a spring layer which is disposed between the first functional layer and the carrier layer,
the spring layer having at least one spring plate which is disposed, in projection of the transmission control plate perpendicularly to the planar extension thereof, within at least one throughflow-opening in the spring layer;
wherein said first functional layer has at least one path-limiting element for limiting the path of the spring plate.

2. The transmission control device according to claim 1 , wherein the spring plate, in the closed state of the throughflow-opening, is supported in a region of the first functional layer which is adjacent to the circumferential edge of the throughflow-opening.

3. The transmission control device according to claim 1 , whereby a second functional layer which is disposed adjacent to the second surface of the carrier layer.

4. The transmission control device according to claim 3 , wherein the first and/or the second functional layer has flow-conducting elements which are disposed, in projection of the transmission control plate perpendicularly to the planar extension thereof, within the throughflow-opening in the functional layer, and which are configured such that they set a fluid, which is flowing along the flow axis of the throughflow-opening, in a rotational movement about this longitudinal axis.

5. The transmission control device according to claim 3 , wherein said path-limiting element, which is in one piece with at least one of the functional layers, for limiting the path of the spring plate and is connected to the circumferential edge of the throughflow-opening of at least one of the functional layers at at least two connection points, and is disposed between the connection points, in projection of the transmission control plate perpendicularly to the planar extension thereof, within the throughflow-opening of at least one of the functional layers, and at a spacing relative to the circumferential edge of the throughflow-opening of the carrier layer and/or of the functional layer.

6. The transmission control device according to claim 5 , wherein at least one pair of adjacent connection points are disposed along the circumferential edge, relative to the center of the connection points, offset by at least 85° relative to each other.

7. The transmission control device according to claim 5 , wherein the path-limiting element is mounted elastically on a region about the throughflow-opening, which region is adjacent to the circumferential edge about the throughflow-opening of at least one of the functional layers and forms a resilient limit stop.

8. The transmission control device according to claim 7 , wherein the spring plate and the path-limiting element have different spring rates, including the path-limiting element having a higher spring rate than the spring plate.

9. The transmission control device according to claim 5 , wherein the path-limiting element, in the direction of at least one of the functional layers, on which the spring plate is supported in the closed state, has at least one embossing, which protrudes and is disposed opposite the spring plate, and/or the spring plate, in the direction of at least one of the functional layers, on which the spring plate is supported in the closed state, has at least one embossing which protrudes and is disposed opposite the path-limiting element, including a cup-shaped embossing.

10. The transmission control device according to claim 5 , wherein the path-limiting element has embossings which protrude in the direction of the spring plate and are disposed away from the spring plate, and/or the spring plate has embossings which protrude in the direction of the path-limiting element and are disposed opposite the path-limiting element, including a bead or profiling which extends circumferentially at least in portions, or a metal ring or a rubber element.

11. The transmission control device according to claim 3 , wherein a region which is adjacent to the circumferential edge of the throughflow-opening of at least one of the functional layers on which the spring plate is supported in the closed state has, as support for the spring plate, or the spring plate has, in the outer edge region thereof as support in the closed state of the throughflow-opening and extending circumferentially at least in regions, a border, a metal ring, a rubber element, a half-bead, a full bead or an undulating profile.

12. The transmission control device according to claim 11 , wherein the thickness (D F ), which is determined perpendicularly to a course of the neutral axis of at least one of the functional layers, on which the spring plate is supported in the closed state, of one, several or all of the sides of the half-bead, of the full bead or of the undulating profiling, relative to the thickness (D max ) of at least one of the functional layers, is reduced laterally adjacent to the bead or the profiling, including a reduction of ≥22%, or the thickness (D B ), which is determined perpendicularly to the course of the neutral axis of at least one of the functional layers, of a bordered region of a border is reduced relative to the thickness (D L ) of the region of at least one of the functional layers which is adjacent to the relevant border, including a reduction of ≥8%.

13. The transmission control device according to claim 1 , whereby the spring plate, in the closed state of the throughflow-opening, is supported in a region of the second functional layer which is adjacent to the circumferential edge of the throughflow-opening.

14. The transmission control device according to claim 1 , wherein said path-limiting element has at least two webs which protrude, in projection of the transmission control plate perpendicularly to the planar extension thereof, into the throughflow-opening, at least two of the webs being connected together at ends thereof which are opposite the circumferential edge of the throughflow-opening, and which span across the throughflow-opening.

15. The transmission control device according to claim 1 , wherein the path-limiting element has at least one web which protrudes into the throughflow-open

Assignees

• Reinz Dichtungs Gmbh

Inventors

• Blersch Robert
• Claus Oliver
• Egloff Georg
• Hoehe Kurt
• Pendzialek Matthias

Classifications

• F16J15/064

  the packing combining the sealing function with other functions · CPC title

• F16K15/144

  the closure elements being fixed along all or a part of their periphery · CPC title

• F16K15/023

  the valve member consisting only of a predominantly disc-shaped flat element · CPC title

• F16H61/0009 Primary

  Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units · CPC title

• F16J2015/085

  without fold over · CPC title