Piston for internal combustion engine
AssigneeAisin Seiki Kabushiki
InventorsYasuhiro Kawabata, Soichi Hara, Shirou Machida, Hiroshi Kageyama
Life of this patent
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Abstract
A piston comprises a crown part, a piston under part, a first shoulder at a thrust side formed between the crown part and the piston under part, a second shoulder at an anti-thrust side formed between the crown part and the piston under part, a first in-low part at the thrust side formed in the piston under part, and a second in-low part at the anti-thrust side formed in the piston under part, wherein a thickness of the first shoulder is formed thinner than a thickness of the second shoulder, and a height of the first in-low part is formed smaller than a height of the second in-low part.
Claims4
A piston comprising:
- a crown part;
- a piston under part;
- a first shoulder at a thrust side formed between the crown part and the piston under part;
- a second shoulder at an anti-thrust side formed between the crown part and the piston under part;
- a first in-low part at the thrust side formed in the piston under part;
- and
- a second in-low part at the anti-thrust side formed in the piston under part;
- wherein a thickness of the first shoulder is formed thinner than a thickness of the second shoulder, and
- a height of the first in-low part is formed smaller than a height of the second in-low part.
A piston comprising:
- a crown part;
- a piston under part;
- a first shoulder at a thrust side formed between the crown part and the piston under part;
- a second shoulder at an anti-thrust side formed between the crown part and the piston under part;
- a first in-low part at the thrust side formed in the piston under part;
- and
- a second in-low part at the anti-thrust side formed in the piston under part;
- wherein a thickness of the first shoulder is formed thinner than a thickness of the second shoulder,
- a height of the first in-low part is formed at the same height as a height of the second in-low part, and
- a thickness of the first in-low part is formed thinner than a thickness of the second in-low part.
Dependencies are inferred from the claim text.