Oil temperature control system and bulldozer hydraulic system

• Main Authors: JIA CHAO, LIU CHUNCHAO, JIN KE, JIANG YOUSHAN, SONG JINBAO
• Format: Patent
• Language: Chinese; English
• Published: 15.09.2017
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

The invention belongs to the technical field of hydraulic pressure, and discloses an oil temperature control system and a bulldozer hydraulic system. The oil temperature control system comprises an electromagnetic valve, an oil cooler, an oil temperature sensor, a controller and a safety valve. An inlet end of the electromagnetic valve communicates with a hydraulic oil way, and an outlet end communicates with an oil return box. An inlet end of the oil cooler communicates with the electromagnetic valve, and an outlet end communicates with the oil return box. The oil temperature sensor is arranged on the hydraulic oil way. The electromagnetic valve is used for guiding hydraulic oil into the oil return box at low temperature. An inlet end of the safety valve communicates with the hydraulic oil way, and an outlet end communicates with the oil return box. The bulldozer hydraulic system comprises the oil temperature control system. Through arrangement of the electromagnetic valve, when the temperature of the hydrau