Oil-gas separator assembly and internal combustion engine

Patent metadata

Field	Value
Publication number	US-10094256-B2
Application number	US-201615389552-A
Country	US
Kind code	B2
Filing date	Dec 23, 2016
Priority date	Aug 25, 2016
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

An oil-gas separator assembly is provided, which includes a rotating separating section and a stationary filtering section. The rotating separating section includes: a rotating member provided with a through hole for an oil-gas mixture passing through; a rotating skeleton fixedly arranged at an outer side of the rotating member, wherein a rotating filter element is provided in the rotating skeleton for being rotated along with the rotating skeleton; a connecting pipe fixedly connected to an inner side of the rotating member; and a rotating impeller fixedly connected to the rotating member and located in the connecting pipe, wherein the rotating impeller is used for suctioning the oil-gas mixture into the oil-gas separator assembly. The stationary filtering section includes: a housing fitted with the connecting pipe; a stationary skeleton; and a vent hole provided on the housing, and an oil discharging hole provided at the bottom of the housing.

First claim

The invention claimed is:

1. An oil-gas separator assembly, comprising:
a rotating separating section, and
a stationary filtering section,
wherein the rotating separating section comprises:
a rotating member provided with a through hole for an oil-gas mixture passing through;
a rotating skeleton fixedly arranged at an outer side of the rotating member, wherein a rotating filter element is provided in the rotating skeleton for being rotated along with the rotating skeleton;
a connecting pipe fixedly connected to an inner side of the rotating member; and
a rotating impeller fixedly connected to the rotating member and located in the connecting pipe, wherein the rotating impeller is provided for suctioning the oil-gas mixture into the oil-gas separator assembly and allowing the oil-gas mixture to pass through the oil-gas separator assembly, and

wherein the stationary filtering section comprises:
a housing fitted with the connecting pipe in a sealed manner;
a stationary skeleton arranged in the housing, wherein a stationary filter element is provided in the stationary skeleton; and
a vent hole provided on the housing, and an oil discharging hole provided at the bottom of the housing.

2. The oil-gas separator assembly according to claim 1 , wherein a plurality of stationary skeletons is provided in the stationary filtering section, and the stationary skeleton filter element is provided in each of the stationary skeletons.

3. The oil-gas separator assembly according to claim 1 , wherein the vent hole is arranged on an upper part of the housing.

4. The oil-gas separator assembly according to claim 3 , further comprising a pressure regulating valve arranged on the housing for regulating gas pressure in the housing and maintaining the gas pressure in the housing within a predetermined range.

5. The oil-gas separator assembly according to claim 1 , wherein the oil discharging hole is arranged right below the stationary skeleton.

6. The oil-gas separator assembly according to claim 5 , wherein an oil groove for temporarily storing lubricating oil is provided between the stationary skeleton and the oil discharging hole.

7. The oil-gas separator assembly according to claim 6 , further comprising a one-way valve arranged at the oil discharging hole and simply allowing oil liquid to flow out of the oil discharging hole.

8. The oil-gas separator assembly according to claim 1 , wherein the connecting pipe is fitted with the housing in a sealed manner by a skeleton oil seal.

9. An internal combustion engine, comprising:
the oil-gas separator assembly, according to claim 1 , in communication with a crankcase.

10. An internal combustion engine, comprising:
the oil-gas separator assembly, according to claim 2 , in communication with a crankcase.

11. An internal combustion engine, comprising:
the oil-gas separator assembly, according to claim 3 , in communication with a crankcase.

12. An internal combustion engine, comprising:
the oil-gas separator assembly, according to claim 4 , in communication with a crankcase.

13. An internal combustion engine, comprising:
the oil-gas separator assembly, according to claim 5 , in communication with a crankcase.

14. An internal combustion engine, comprising:
the oil-gas separator assembly, according to claim 6 , in communication with a crankcase.

15. An internal combustion engine, comprising:
the oil-gas separator assembly, according to claim 7 , in communication with a crankcase.

16. An internal combustion engine, comprising:
the oil-gas separator assembly, according to claim 8 , in communication with a crankcase.

17. The internal combustion engine according to claim 9 , wherein the oil-gas separator assembly is arranged in a gearbox of the internal combustion engine, and the rotating member is a gear in the gearbox.

Assignees

• Weichai Power Co Ltd

Inventors

• Li Chunfeng
• Shen Jiawei
• Li Nan

Classifications

• B01D46/2411

  Filter cartridges · CPC title

• F01M2013/0422

  Separating oil and gas with a centrifuge device · CPC title

• F01M13/04 Primary

  having means for purifying air before leaving crankcase, e.g. removing oil · CPC title

• B01D46/0036

  by adsorption or absorption · CPC title

• F01M13/0011

  Breather valves · CPC title