EP0094982A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Cylinder cover for water-cooled internal combustion engine
Assignee: Mitsubishi Heavy Industries Ltd
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Filing: 1982-05-26
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Granted: —
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Expires: 2002-05-26
Abstract
Abstract In a cylinder cover incorporating a cooling arrangement, for the purpose of making it possible to sufficiently cool an inner peripheral portion (11d) of a long cylindrical leg (11a) formed in the lower part of the cylinder cover (11 said leg is provided with an upper cooling and lower annular cooling chambers 14, 15 in its outer peripheral portion, and a plurality of cooling holes (13, 13a, 13b) are formed in the inner portion of said leg and have their opposite ends opening out into respective cooling chambers 14 and 15.
Inventors
- 👤 Katsuo Yodogawa
- 👤 Yasutaka Irie
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 05:01
CPC Classifications
F; F01; F01P; F01P3/00; F01P3/02; F02; F02F; F02F1/00; F02F1/24; F02F1/26; F02F1/36; F02F1/40; F02B; F02B3/00; F02B3/06; F02F2001/244; F02F2001/247
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
120 words
A cylinder cover incorporating a cooling arrangement comprising an annular cooling chamber in the outer peripheral portion of a long cylindrical leg portion formed in the lower part of said cylinder cover, and a plurality of circumferentially spaced holes communicating between said chamber and an exhaust valve cooling chamber, characterised in that two upper and lower annular chambers (14, 15) are provided in said outer peripheral portion of said cylindrical leg portion (lla), in that said cooling ducts (9) are connected only to said upper chamber (15), and in that further cooling ducts (13, 13a, 13b) are formed in the inner portion of said long cylindrical leg and have their opposite ends opening into respective annular cooling chambers (14, 15).
Claim 2
Dependent Claim
120 words
A cylinder cover incorporating a cooling arrangement comprising an annular cooling chamber in the outer peripheral portion of a long cylindrical leg portion formed in the lower part of said cylinder cover, and a plurality of circumferentially spaced holes communicating between said chamber and an exhaust valve cooling chamber, characterised in that two upper and lower annular chambers (14, 15) are provided in said outer peripheral portion of said cylindrical leg portion (lla), in that said cooling ducts (9) are connected only to said upper chamber (15), and in that further cooling ducts (13, 13a, 13b) are formed in the inner portion of said long cylindrical leg and have their opposite ends opening into respective annular cooling chambers (14, 15).
Claim 3
Dependent Claim
44 words
A cylinder cover as claimed in Claim 1, characterized in that said ducts (13, 13a, 13b) are inclined upwardly at an angle 6 to the vertical and are arranged so as to encircle the combustion chamber (5) in straight sections which do not interconnect.
References Cited (Backward Citations)
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