| 摘要 |
A device for mounting an internal combustion engine on a machine frame of a working machine includes grooves formed in internal walls of the machine frame so as to oppose each other and to extend in a direction of axis of a crankshaft of the engine, and projections projecting from both lateral sides of a crank case and extending in the axial direction. The projections are fittingly received by the grooves in the internal walls of the machine frame, whereby the internal combustion engine is located in the internal space of the machine frame.
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