Coolant distributor for a machine configuration and corresponding machine configuration

Patent metadata

Field	Value
Publication number	US-10763728-B2
Application number	US-201816226803-A
Country	US
Kind code	B2
Filing date	Dec 20, 2018
Priority date	Dec 21, 2017
Publication date	Sep 1, 2020
Grant date	Sep 1, 2020

Abstract

A coolant distributor for a machine configuration. At least one coolant forward flow inlet opening and at least one coolant return flow outlet opening as well as multiple coolant forward flow outlet openings and multiple coolant return flow inlet openings are formed in a distributor body of the coolant distributor. The coolant forward flow inlet opening is fluidically connected by way of a forward flow chamber present in the distributor body to the coolant flow outlet openings, and the coolant return flow inlet openings are fluidically connected by way of a return flow chamber to the coolant return flow outlet opening and the coolant forward flow inlet opening is separated fluidically within the distributor body from the coolant return flow outlet opening, and wherein the distributor body is composed of two identical parts, which between them form the forward flow chamber and the return flow chamber.

First claim

The invention claimed is:

1. A coolant distributor for a machine configuration, comprising:
at least one coolant forward flow inlet opening and at least one coolant return flow outlet opening as well as multiple coolant forward flow outlet openings and multiple coolant return flow inlet openings are formed in a distributor body of the coolant distributor, wherein the coolant forward flow inlet opening is fluidically connected by way of a forward flow chamber present in the distributor body to the coolant forward flow outlet openings, and the coolant return flow inlet openings are fluidically connected by way of a return flow chamber to the coolant return flow outlet opening, and the coolant forward flow inlet opening is separated fluidically within the distributor body from the coolant return flow outlet opening, and wherein the distributor body is composed of two identical parts, which between them form the forward flow chamber and the return flow chamber.

2. The coolant distributor as claimed in claim 1 , wherein the distributor body has a central hollow shaft passage opening relative to a longitudinal center axis of the distributor body, this passage opening being connected on an outside to the coolant return flow inlet openings in a radial direction.

3. The coolant distributor as claimed in claim 1 , wherein the coolant return flow inlet openings are bounded on both sides in a circumferential direction with respect to a longitudinal center axis of the distributor body.

4. The coolant distributor as claimed in claim 1 , wherein the coolant return flow inlet openings are formed in different ones of the identical parts.

5. The coolant distributor as claimed in claim 1 , wherein the coolant forward flow inlet opening is composed of multiple coolant forward flow inlet opening portions, each of them formed at a spacing from each other in different ones of the identical parts and are closed at an edge, wherein the coolant forward flow inlet opening portions pass through lateral surfaces of the identical parts.

6. The coolant distributor as claimed in claim 5 , wherein the coolant return flow outlet opening is situated, looking in an axial direction, between the coolant forward flow inlet opening portions, and, in each case, is formed partially in the identical parts and open at the edge, wherein the coolant return flow outlet opening passes through the lateral surfaces of the identical parts.

7. The coolant distributor as claimed in claim 1 , wherein the return flow chamber widens out in a radial course in a circumferential direction, starting from the coolant return flow inlet openings, toward the coolant return flow outlet opening.

8. The coolant distributor as claimed in claim 1 , wherein a flow guidance element is situated in the return flow chamber, resting against both identical parts in an axial direction, and the flow guidance element extends from the coolant return flow inlet openings up to the coolant return flow outlet opening, so that a portion of the return flow chamber is fluidically separated from the coolant return flow inlet openings.

9. The coolant distributor as claimed in claim 8 , wherein the flow guidance element is curved in a circumferential direction.

10. A machine configuration, comprising:
a first electric machine and a second electric machine, each having a first hollow shaft and a second hollow shaft protruding into the first hollow shaft, which are fluidically connected to a coolant distributor designed according to claim 1 , wherein each of the electric machines comprises a coolant duct that is present partially in the respective second hollow shaft and formed partially by an annular space present between an inner circumference of the respective first hollow shaft and an outer circumference of the respective second hollow shaft.

Assignees

• Audi Ag
• Audi Hungaria Zrt

Inventors

• Cox Jason
• Pohlmann Axel
• Zucknik Stefan
• Barany Zsolt

Classifications

• H02K1/32 Primary

  with channels or ducts for flow of cooling medium · CPC title

• H02K9/19 Primary

  for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil · CPC title

• H02K5/203

  specially adapted for liquids, e.g. cooling jackets · CPC title

• H02K9/197

  in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator · CPC title

• B60K1/00

  Arrangement or mounting of electrical propulsion units (B60K7/00 takes precedence; arrangement or mounting of plural diverse prime-movers for mutual or common propulsion B60K6/00) · CPC title