IP Library Granted Patent US 12692805
Granted Patent B2
US 12692805 · App. 19/026,428 · Granted Jul 28, 2026

Lubricating oil filter base assembly and lubricating oil filter radiator assembly

Inventors: Xiaofu Lin (Wenzhou, CN); Wanyi Lin (Wenzhou, CN); Feng Cai (Wenzhou, CN)
Assignee: WENZHOU DEXIN AUTO PARTS CO., LTD.
F01M11/03F01M2011/033
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Quick Facts
Patent No.
US 12692805
App. No.
19/026,428
Granted
Jul 28, 2026
Kind
B2
Abstract

A lubricating oil filter base assembly and lubricating oil filter radiator assembly are provided. The lubricating oil filter base assembly includes a base and a radiator, where the radiator is assembled on an upper surface of the base; the base is provided with an oil passage; the oil passage is communicated with an inner chamber of a filter housing and an oil outlet; the upper surface of the base is provided with a cooling outlet and a cooling inlet; the cooling outlet is communicated with the oil passage, and the cooling inlet is communicated with the oil outlet; the oil passage is provided with a tortuous section; the tortuous section is provided between the cooling outlet and an outlet of the oil passage; and lubricating oil flows through a tortuous flow path in the tortuous section, which reduces the flow velocity of the lubricating oil.

Claims (34)

1 . A lubricating oil filter base assembly, comprising a base, wherein two ends of the base serve as a first end and a second end, respectively; the first end of the base is integrally provided with a filter housing; and the base comprises an upper surface assembled with a radiator and a lower surface provided with an oil outlet;

the base is provided with an oil passage; the oil passage is longitudinally provided and communicated with an inner chamber of the filter housing and the oil outlet; the upper surface of the base is provided with a cooling outlet and a cooling inlet; and the cooling outlet is communicated with the oil passage, and the cooling inlet is communicated with the oil outlet; and

the oil passage is provided with a tortuous section; the tortuous section is provided between the cooling outlet and an outlet of the oil passage; and lubricating oil flows through a tortuous flow path in the tortuous section.

2 . The lubricating oil filter base assembly according to claim 1 , wherein the tortuous section of the oil passage is provided with a baffle; the baffle is transversely arranged in the oil passage; and the baffle has a width smaller than a width of the oil passage or/and a height smaller than a height of the oil passage.

3 . The lubricating oil filter base assembly according to claim 2 , wherein the oil passage extends towards the first end of the base to form a first core opening; the tortuous section extends towards the upper surface of the base to form a second core opening; and the second core opening is sealed with a bottom surface of the radiator.

4 . The lubricating oil filter base assembly according to claim 3 , wherein the second core opening has a width greater than widths of an inlet and the outlet of the oil passage; and

the second core opening expands transversely to approach two side walls of the base.

5 . The lubricating oil filter base assembly according to claim 2 , wherein the oil outlet is located close to the second end of the base; the oil outlet extends upwards to form an oil hole; and the oil hole is communicated with the outlet of the oil passage; and

the cooling inlet extends into the base and is communicated with the oil hole.

6 . The lubricating oil filter base assembly according to claim 2 , wherein the tortuous section of the oil passage is generally a straight passage; and

the baffle is provided in a plurality; and each two adjacent baffles are misaligned with each other.

7 . The lubricating oil filter base assembly according to claim 6 , wherein the oil passage extends towards the first end of the base to form a first core opening; the tortuous section extends towards the upper surface of the base to form a second core opening; and the second core opening is sealed with a bottom surface of the radiator.

8 . The lubricating oil filter base assembly according to claim 6 , wherein the oil outlet is located close to the second end of the base; the oil outlet extends upwards to form an oil hole; and the oil hole is communicated with the outlet of the oil passage; and

the cooling inlet extends into the base and is communicated with the oil hole.

9 . The lubricating oil filter base assembly according to claim 6 , wherein the baffle comprises a first side end located on a first side wall of the oil passage and a second side end forming a flow gap with a second side wall of the oil passage; and the plurality of baffles are alternately arranged on the first side wall and the second side wall of the oil passage.

10 . The lubricating oil filter base assembly according to claim 9 , wherein the oil passage extends towards the first end of the base to form a first core opening; the tortuous section extends towards the upper surface of the base to form a second core opening; and the second core opening is sealed with a bottom surface of the radiator.

11 . The lubricating oil filter base assembly according to claim 9 , wherein the oil outlet is located close to the second end of the base; the oil outlet extends upwards to form an oil hole; and the oil hole is communicated with the outlet of the oil passage; and

the cooling inlet extends into the base and is communicated with the oil hole.

12 . The lubricating oil filter base assembly according to claim 1 , wherein the oil passage extends towards the first end of the base to form a first core opening; the tortuous section extends towards the upper surface of the base to form a second core opening; and the second core opening is sealed with a bottom surface of the radiator.

13 . The lubricating oil filter base assembly according to claim 12 , wherein the second core opening has a width greater than widths of an inlet and the outlet of the oil passage; and

the second core opening expands transversely to approach two side walls of the base.

14 . The lubricating oil filter base assembly according to claim 1 , wherein the oil outlet is located close to the second end of the base; the oil outlet extends upwards to form an oil hole; and the oil hole is communicated with the outlet of the oil passage; and

the cooling inlet extends into the base and is communicated with the oil hole.

15 . The lubricating oil filter base assembly according to claim 14 , wherein the second end of the base is provided with a mounting hole; and the mounting hole extends into the base and is communicated with the oil hole;

the base is fabricated by metal casting; and the mounting hole is riveted with a connector comprising an internal thread; and

the connector is fabricated by metal casting; and a sealing ring is provided between the connector and the mounting hole.

16 . The lubricating oil filter base assembly according to claim 15 , wherein the mounting hole is provided with a protrusion or groove matching with the connector; and

the mounting hole comprises a pressure sensor mounting hole and a temperature sensor mounting hole.

17 . A lubricating oil filter radiator assembly, comprising a lubricating oil filter base assembly and a radiator, wherein the lubricating oil filter base assembly is the lubricating oil filter base assembly according to claim 1 ; and

the radiator is assembled on the upper surface of the base.

18 . The lubricating oil filter radiator assembly according to claim 17 , wherein in the lubricating oil filter base assembly, the tortuous section of the oil passage is provided with a baffle; the baffle is transversely arranged in the oil passage; and the baffle has a width smaller than a width of the oil passage or/and a height smaller than a height of the oil passage.

19 . The lubricating oil filter radiator assembly according to claim 18 , wherein in the lubricating oil filter base assembly, the tortuous section of the oil passage is generally a straight passage; and

the baffle is provided in a plurality; and each two adjacent baffles are misaligned with each other.

20 . The lubricating oil filter radiator assembly according to claim 19 , wherein in the lubricating oil filter base assembly, the baffle comprises a first side end located on a first side wall of the oil passage and a second side end forming a flow gap with a second side wall of the oil passage; and the plurality of baffles are alternately arranged on the first side wall and the second side wall of the oil passage.