JPH035927U - - Google Patents

Info

Publication number
JPH035927U
JPH035927U JP6358889U JP6358889U JPH035927U JP H035927 U JPH035927 U JP H035927U JP 6358889 U JP6358889 U JP 6358889U JP 6358889 U JP6358889 U JP 6358889U JP H035927 U JPH035927 U JP H035927U
Authority
JP
Japan
Prior art keywords
exhaust port
rear side
cooling air
air passage
cylinder head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP6358889U
Other languages
Japanese (ja)
Other versions
JPH0741861Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989063588U priority Critical patent/JPH0741861Y2/en
Publication of JPH035927U publication Critical patent/JPH035927U/ja
Application granted granted Critical
Publication of JPH0741861Y2 publication Critical patent/JPH0741861Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例に係るシリンダヘツ
ドを備える部分油冷型空冷頭上弁エンジンの縦断
面図、第２図はそのシリンダヘツドの左後斜め上
から見た斜視図、第３図はその横断平面図、第４
図はその背面図、第５図は本考案の他の実施例の
背面図、第６図は従来例の縦断面図である。 １……左横側面、２……下面、３……吸気ポー
ト、３ａ……開口部、４……後側面、５……排気
ポート、６……前側面、７……冷却風路、８……
分岐冷却風路。 Fig. 1 is a longitudinal cross-sectional view of a partially oil-cooled air-cooled overhead valve engine equipped with a cylinder head according to an embodiment of the present invention, Fig. 2 is a perspective view of the cylinder head as seen from diagonally above the left rear, and Fig. 3 is its cross-sectional plan view, the fourth
5 is a rear view of another embodiment of the present invention, and FIG. 6 is a longitudinal sectional view of a conventional example. 1...Left side surface, 2...Bottom surface, 3...Intake port, 3a...Opening, 4...Rear side, 5...Exhaust port, 6...Front side, 7...Cooling air path, 8 ……
Branch cooling air path.

Claims (1)

【実用新案登録請求の範囲】 前部の左右いずれか一方の横側面１から下面２
に延びる吸気ポート３と、下面２の吸気ポート３
の開口部３ａの後側から後側面４に延びる排気ポ
ート５と、前側面６から吸気ポート３及び排気ポ
ート５の左右いずれか他方の横側を通つて後側面
４に連通する冷却風路７とを設けた空冷頭上弁エ
ンジンのシリンダヘツドにおいて、 上記冷却風路７から排気ポート５の下側を通つ
て、排気ポート５の下側ないし上記一方の横側で
後側面４に開通される分岐冷却風路８を設けた事
を特徴とする、空冷頭上弁エンジンのシリンダヘ
ツド。[Scope of claim for utility model registration] From the side surface 1 to the bottom surface 2 of either the left or right front part
and an intake port 3 on the bottom surface 2.
an exhaust port 5 extending from the rear side of the opening 3a to the rear side surface 4, and a cooling air passage 7 communicating with the rear side surface 4 from the front side surface 6 through either the left or right side of the intake port 3 and the exhaust port 5. In the cylinder head of an air-cooled overhead valve engine, a branch is provided which runs from the cooling air passage 7 through the lower side of the exhaust port 5 and opens to the rear side surface 4 at the lower side of the exhaust port 5 or on the side of one of the exhaust ports. A cylinder head for an air-cooled overhead valve engine, characterized by having a cooling air passage 8.
JP1989063588U 1989-05-30 1989-05-30 Air-cooled overhead valve engine cylinder head Expired - Lifetime JPH0741861Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989063588U JPH0741861Y2 (en) 1989-05-30 1989-05-30 Air-cooled overhead valve engine cylinder head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989063588U JPH0741861Y2 (en) 1989-05-30 1989-05-30 Air-cooled overhead valve engine cylinder head

Publications (2)

Publication Number Publication Date
JPH035927U true JPH035927U (en) 1991-01-21
JPH0741861Y2 JPH0741861Y2 (en) 1995-09-27

Family

ID=31593774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989063588U Expired - Lifetime JPH0741861Y2 (en) 1989-05-30 1989-05-30 Air-cooled overhead valve engine cylinder head

Country Status (1)

Country Link
JP (1) JPH0741861Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5345405B2 (en) * 2009-01-08 2013-11-20 本田技研工業株式会社 Cylinder head cooling structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5515366U (en) * 1978-07-18 1980-01-31
JPS5773324U (en) * 1980-10-21 1982-05-06
JPS5997227U (en) * 1982-12-21 1984-07-02 スズキ株式会社 Exhaust pipe cooling system for forced air-cooled engines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5515366U (en) * 1978-07-18 1980-01-31
JPS5773324U (en) * 1980-10-21 1982-05-06
JPS5997227U (en) * 1982-12-21 1984-07-02 スズキ株式会社 Exhaust pipe cooling system for forced air-cooled engines

Also Published As

Publication number Publication date
JPH0741861Y2 (en) 1995-09-27

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