JPH03114527U

JPH03114527U -

Info

Publication number: JPH03114527U
Application number: JP2397990U
Authority: JP
Priority date: 1990-03-09
Filing date: 1990-03-09
Publication date: 1991-11-25

Description

[Brief explanation of drawings]

第１図〜第６図は本考案の実施例に関し、第１
図はオイルクーラの横断平面図、第２図及び第３
図はそれぞれオイルクーラの変形例を模式的に示
す図、第４図は本考案のオイルクーラを備えた油
冷併用型の頭上弁式空冷エンジンの正面図、第５
図はそのエンジンの側面図、第６図はそのエンジ
ン上部の縦断背面図、第７図は従来例を示す模式
図である。２０……オイルクーラ、２１……熱交換ブロツ
ク、２１Ｇ……ブロツク群、２１Ｇ_１……上流側
ブロツク群、２１Ｇ_２……下流側ブロツク群、２
２……始端室、２３…オイル通路、２４……終端
室、２６……通風隙間、３１……オイル入口管、
３２……オイル出口管。 Figures 1 to 6 relate to embodiments of the present invention.
The figures are cross-sectional plan views of the oil cooler, Figures 2 and 3.
The figures schematically show modified examples of the oil cooler, Figure 4 is a front view of an oil-cooled overhead valve air-cooled engine equipped with the oil cooler of the present invention, and Figure 5
FIG. 6 is a side view of the engine, FIG. 6 is a longitudinal cross-sectional rear view of the upper part of the engine, and FIG. 7 is a schematic diagram showing a conventional example. 20...Oil cooler, 21...Heat exchange block, 21G...Block group, _21G1 ...Upstream block group, _21G2 ...Downstream block group, 2
2... Starting end chamber, 23... Oil passage, 24... End chamber, 26... Ventilation gap, 31... Oil inlet pipe,
32...Oil outlet pipe.

Claims

[Claims for Utility Model Registration] 1. In the heat exchange block 21, an oil communication starting end chamber 22 is provided at the starting end of the oil passage 23;
A terminal chamber 24 for oil communication is formed in a communicating manner at the terminal end of the oil passages 3, and a plurality of heat exchange blocks 21 are integrated in parallel to form a cooling air ventilation gap 2 between adjacent oil passages.
6, an oil inlet pipe 31 is connected to the starting end chamber 22 of the heat exchange block 21, and an oil outlet pipe 32 is connected to the end chamber 24 of the heat exchange block 21. A plurality of integrated heat exchange blocks 21...
consists of a plurality of block groups 21G..., and each block group 21G has a block group _21G2 adjacent to the downstream side of the block group _21G1 located on the upstream side, and a starting end chamber 22 and a terminal end chamber 24 are opposite to each other. The starting end chamber 22 of the downstream block group _21G2 is arranged to communicate with the terminal end chamber 24 of the upstream block group 21G1, and the starting end chamber ₂₂ of the most upstream block group 21G is supplied with oil. An oil cooler for an engine characterized in that an inlet pipe 31 is communicated with the oil outlet pipe 32 of the terminal chamber 24 of the block group 21G on the most downstream side. 2. The oil inlet pipe 31 is provided protruding from the front face of one end of the block group 21G located on the most upstream side, while the oil inlet pipe 31 is provided protruding from the front face of the other end of the block group 21G located on the most downstream side, or on the other end of the block group 21G located on the most downstream side. 2. The engine oil cooler according to claim 1, further comprising an oil outlet pipe 32 projecting from the rear surface of the end portion. 3. While the oil inlet pipe 31 is provided protruding from the front surface of one end of the block group 21G located on the most upstream side, the oil outlet pipe 32 is provided as an oil inlet from the rear surface of one end of the block group 21G located on the most downstream side. tube 3
2. The oil cooler for an engine according to claim 1, wherein said oil cooler is configured to protrude coaxially with said oil cooler.