BALANCER DEVICE AND LUBRICATING SYSTEM FOR OIL PUMP AND BALANCER SHAFT BEARING

Number of patents in Portfolio can not be more than 2000

United States of America

APP PUB NO 20200018198A1
SERIAL NO

16560211

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Balancer shaft 5 and 6 rotatably set through bearings 11˜14 and an oil pump 2 driven by power from the balancer shaft 5 and 6 are provided in a balancer housing. Oil discharged from an outlet portion 42 of the oil pump 2 is supplied to a main oil gallery 10 through an outlet passage 48. A bearing filter 55 that filters a part of the oil is provided in the outlet passage 48 that extends from the outlet portion 42. A communication passage 50 that branches off from the outlet passage 48 and communicates with the bearings 11˜14 supplies a part of the oil having been filtered by the bearing filter 55 to the bearings 11˜14. By filtering the oil that is going to be supplied to the bearing portion, decrease in durability of the bearing portion can be suppressed.

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Patent Owner(s)

Patent OwnerAddress
HITACHI ASTEMO LTD2520 TAKABA HITACHINAKA-SHI IBARAKI 312-8503

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
HIRANO, Takashi Atsugi-shi, JP 181 2517
KITAMURA, Masaharu Atsugi-shi, JP 12 38
KURITA, Masahumi Zama-shi, JP 5 4

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