Title:
CONNECTING ROD ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2021/248603
Kind Code:
A1
Abstract:
A connecting rod assembly, comprising pistons (1), connecting rod bodies (2) rotatably mounted on the pistons (1), and a crankshaft (3); the pistons (1) are each provided with a piston pin (4), one end of a connecting rod body (2) is provided with a pin hole (8) and is rotatably sleeved on the piston pin (4), the other end of the connecting rod body (2) is connected to a connecting rod cover (5), the connecting rod cover (5) and the connecting rod body (2) together form a shaft hole (9), the connecting rod bodies (2) are each further provided with an oil passage (21), the shaft hole (9) communicates with the pin hole (8) by means of the oil passage (21), main journals (31) of the crankshaft (3) and connecting rod journals (32) of the crankshaft (3) are respectively provided with shaft oil intake holes (33) and shaft oil outlet holes (34) that communicate with one another, and the oil passages (21) of the connecting rod bodies (2) communicate with the shaft oil outlet holes (34) of the crankshaft (3), the shaft holes (9) are each internally provided with a bearing bush (61, 62), the crankshaft (3) is mounted inside of the bearing bushes (61, 62), the inner walls of the shaft holes (9) are provided with oil grooves (7) that communicate with the oil passages (21), the bearing bushes (61, 62) are each provided with a bush hole (63), and the shaft oil outlet holes (34) on the crankshaft (3) communicate with the oil grooves (7) by means of the bush holes (63). The connecting rod assembly forcibly lubricates the pin holes (8) and the piston pins (4) of the connecting rod bodies (2), thus preventing wear of the pin holes (8) and the piston pins (4), improving the service life of the whole machine, and increasing the NVH level of the whole machine.
Inventors:
DENG FAPING (CN)
PAN YONGLIANG (CN)
HE DAOMING (CN)
YAO KEFU (CN)
ZHAO MINGXIANG (CN)
MA BAITAN (CN)
SHI HUANGTAO (CN)
LIU DAIYU (CN)
PAN YONGLIANG (CN)
HE DAOMING (CN)
YAO KEFU (CN)
ZHAO MINGXIANG (CN)
MA BAITAN (CN)
SHI HUANGTAO (CN)
LIU DAIYU (CN)
Application Number:
PCT/CN2020/101027
Publication Date:
December 16, 2021
Filing Date:
July 09, 2020
Export Citation:
Assignee:
DONGFENG LIUZHOU MOTOR CO LTD (CN)
International Classes:
F16C7/02; F01M1/06; F16C3/14; F16C9/04; F16N1/00
Foreign References:
| JP2005273715A | 2005-10-06 | |||
| CN102086901A | 2011-06-08 | |||
| JP2015072037A | 2015-04-16 | |||
| CN202280728U | 2012-06-20 | |||
| US20140261256A1 | 2014-09-18 | |||
| US4567815A | 1986-02-04 | |||
| JP2006077931A | 2006-03-23 | |||
| JPH05231418A | 1993-09-07 | |||
| JP2005127227A | 2005-05-19 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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