Oil circulation device for internal combustion engine
AssigneeHonda Motor Co., Ltd.
InventorsKazuya Fukuoka, Rie Nagai
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Abstract
An oil circulation device for an internal combustion engine includes an oil pan, a partition, and a communication groove. The oil pan is disposed below a cylinder block and includes a bottom wall and a sidewall to define a recessed portion that opens upward. The partition extends upward from the bottom wall so as to have a protruding end and divide the recessed portion into a first recessed portion and a second recessed portion. The communication groove extends downward from the protruding end of the partition in a thickness direction of the partition to connect the first recessed portion and the second recessed portion.
Claims18
An oil circulation device for an internal combustion engine, comprising:
- an oil pan that is configured to be disposed below a cylinder block and that includes a bottom wall and a sidewall that form a recessed portion that opens upward;
- a partition that extends upward from the bottom wall so as to divide the recessed portion into a first recessed portion and a second recessed portion;
- an oil pump configured to pump oil to the internal combustion engine;
- and
- a communication groove that is recessed downward from a protruding end of the partition, that penetrates the partition in the thickness direction, and that enables communication between the first recessed portion and the second recessed portion,
- wherein the communication groove has a cross-section with a width that narrows from an upper opening portion located at the protruding end of the partition to a bottom portion located at a bottom side of the communication groove, and
- wherein the oil pump includes a portion that protrudes vertically downward from an area directly above the upper opening portion of the communication groove through the upper opening portion into the communication groove to a height below the protruding end of the partition.
An oil circulation device for an internal combustion engine, comprising:
- an oil pan that is configured to be disposed below a cylinder block and that includes a bottom wall and a sidewall to define a recessed portion that opens upward;
- a partition extending upward from the bottom wall so as to have a protruding end and divide the recessed portion into a first recessed portion and a second recessed portion;
- a communication groove extending downward from the protruding end of the partition in a thickness direction of the partition to connect the first recessed portion and the second recessed portion;
- and
- an oil pump configured to pump oil to the internal combustion engine,
- wherein the communication groove has a cross-section that is formed as an inverted triangle that tapers downward, and
- wherein the oil pump includes a portion that protrudes vertically downward from an area directly above the inverted triangle of the communication groove into the communication groove to a height below the protruding end of the partition.
Dependencies are inferred from the claim text.