Rear oil seal of engine crankshaft and engine and automobile

The utility model relates to a rear oil seal of an engine crankshaft. The rear oil seal comprises a rigid skeleton, a first elastic body and a second elastic body. The rigid skeleton is provided with a first section and a second section which are connected with each other into a whole. The first ela...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HUANG ZHAOCHUN, XU KUNPENG, HU BIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES BLASTING COMBUSTION ENGINES CYLINDERS CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING PISTONS SEALINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The utility model relates to a rear oil seal of an engine crankshaft. The rear oil seal comprises a rigid skeleton, a first elastic body and a second elastic body. The rigid skeleton is provided with a first section and a second section which are connected with each other into a whole. The first elastic body is embedded in the first section. The second elastic body is provided with a first portion, a second portion and a third portion which are connected into a whole in sequence. The third portion is provided with a sealing working surface. The first portion is embedded in the second portion. The second portion and the third portion are connected with each other to form a C shape. At least the sealing working surface on the first portion is configured into a wave form shape. The utility model further relates to an engine and an automobile. Due to the fact that the rear oil seal of the engine crankshaft adopts multiple optimal designs in the structure, material and other aspects, the rear oil seal of the engin