Granted Patent B2

US 12,305,545 · App. 18/520,594 · Granted May 20, 2025

Inventors: Robin Stauche (Frankfurt am Main, DE); Moritz Jurisch (Sindelfingen, DE); Dominik Elsaesser (Laufach, DE)

Assignee: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT

F01M1/12F16H57/0404F01M2001/126

Abstract

Claims (16)

1. A transmission for a motor vehicle, comprising:

a housing with a gear set with a transmission input shaft and a transmission output shaft, and with a lubrication system, which comprises a conveying means for conveying a lubricant mixture from the housing,

wherein a dry-sump lubrication can be brought about with the aid of the conveying means,

wherein a negative pressure in the housing is controllable in order to reliably bring about the dry-sump lubrication,

wherein the lubrication system comprises a lubricant reservoir with a separator configured to materially separate the lubricant mixture into lubricant and air, and

wherein the negative pressure is controllable with the aid of a first throttle configured for the lubricant to flow through and/or with the aid of a second throttle configured for the air to flow through and/or with the aid of a third throttle of the lubrication system configured for the air to flow through.

2. The transmission according to claim 1 , wherein the negative pressure in the housing is controllable with the aid of the first throttle, the second throttle, and/or the third throttle formed in the lubrication system.

3. The transmission according to claim 1 , wherein the conveying means is an electric pump.

4. The transmission according to claim 1 , wherein the separator is a centrifuge.

5. The transmission according to claim 1 , wherein the first throttle, the second throttle, and/or the third throttle are controllable.

6. The transmission according to claim 1 , wherein the second throttle is connected to the housing so as to allow flow-through.

7. The transmission according to claim 6 , wherein the second throttle is configured to be screwed into the housing.

8. The transmission according to claim 1 , wherein the lubrication system comprises a compensating reservoir, which is formed between the lubricant reservoir and the housing.

9. The transmission according to claim 8 , wherein the third throttle is configured to control the negative pressure and a positive pressure in the lubricant reservoir.

10. The transmission according to claim 1 , wherein a sealing ring of the transmission is configured to be adapted to the negative pressure.

11. The transmission according to claim 1 , wherein the lubrication system comprises at least one lubricant filter.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (39)