Blow-by gas recirculating device
A blow-by gas recirculating device includes an inlet pipe in communication with the intake passage for an automobile engine, and a heat-insulating member. Particularly, the inlet pipe communicates between a blow-by gas producing source and a heat-insulating member positioned between a carburetor and an intake manifold, all forming part of an intake system for the engine. The heat-insulating member has two intake through-holes which form part of the intake passage for the engine and an inlet-pipe-admitting hole which extends from the outer side-surface of the member to the peripheral surface of one of the intake throughholes. The inlet pipe, one end of which is disposed in the inlet pipe-admitting hole, has an average coefficient of linear expansion of no less than 16.7 X 10-6 /deg. In a temperature range of -20 to 200/sup 0/C and a modulus of longitudinal elasticity of no more than 12980 kg/mm/sup 2/. The end of the inlet pipe is positioned in the inlet-pipe-admitting hole and an adhesive is applied. The blow-by gas producing source may comprise the crank case or a cylinder head cover. In the latter case, the positive crank-case ventilating pipe connects the cylinder head cover to the intake system for the engine.
- Assignee:
- Toyota Jidosha Kogyo K K (Japan)
- Patent Number(s):
- US 4195607
- OSTI ID:
- 5693759
- Resource Relation:
- Patent Priority Date: Priority date 27 Mar 1978, Japan; Other Information: PAT-APPL-940296
- Country of Publication:
- United States
- Language:
- English
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