System for cooling an hydraulic excavator专利检索-冷却剂回路核能专利检索查询-专利查询网

System for cooling an hydraulic excavator

阅读：755发布：2022-12-03

专利汇可以提供System for cooling an hydraulic excavator专利检索，专利查询，专利分析的服务。并且The body of an hydraulic excavator is divided into two separate compartments. The first and rearward compartment contains the prime mover engine with the hydraulic system pumps directly associated therewith. Air is drawn through one side inlet in the body across an hydraulic system heat exchanger and the engine coolant radiator by means of a fan mounted therebehind, and from thence across the engine and associated hydraulic pumping mechanisms. The air in this after compartment is thereafter exhausted through vents in the roof, the opposite side wall and the floor portions of the body. In a second compartment forward of the engine compartment is situated the hydraulic system fluid reservoir, valving and other hydraulic circuitry for the excavator vehicle. Openings in at least one side wall of the body, the roof and floor portions thereof permit air to circulate freely over these hydraulic components of the vehicle. A transverse fire wall separates the two compartments in the body and further serves to isolate engine and pump noise from the operator''s station located in a cab portion at the front lefthand side of the body.，下面是System for cooling an hydraulic excavator专利的具体信息内容。

权利要求

1. In an hydraulic excavator vehicle that is powered by a prime mover and has an hydraulic system driven by said prime mover, said hydraulic system including pumps, valves, a fluid reservoir, fluid circuits and motors and further including a body structure for housing the prime mover and at least a portion of the hydraulic system, said body structure including a support frame, left and right side walls, a forward wall, a rear wall and a roof; the improvement comprising a cooling system including a firewall extending transversely across said body structure to divide said structure into front and rear compartments, the prime mover and attached pumps mounted in said rear compartment transverse to the longitudinal axis of said vehicle, an air inlet opening defined by one side wall of said structure and in alignment with said prime mover, a suction fan interposed between said prime mover and said inlet opening, a prime mover coolant radiator interposed between said prime mover and said inlet opening, and an hydraulic fluid heat exchanger further interposed between said prime mover and said inlet opening, air exhaust openings defined by the other side wall adjacent said pumps, and additional air exhaust openings defined by said roof, and by said support frame, the hydraulic fluid reservoir, valves and contiguous circuitry mounted in said front compartment, and said one side walL, roof and frame defining air openings for ventilating said front compartment.

2. The cooling system of claim 1 wherein said prime mover coolant radiator is mounted between said fan and said air inlet opening.

3. The cooling system of claim 2 wherein said hydraulic fluid heat exchanger is mounted between said coolant radiator and said air inlet opening.

4. In an excavator body structure utilized for housing a prime mover engine and an hydraulic system including pump means, valves, a fluid reservoir and fluid circuitry, the improvement comprising first compartment means for partially enclosing and housing said engine and said hydraulic pump means, second compartment means for partially enclosing and housing said fluid reservoir, valves and fluid circuitry, and fire-wall means separating said first compartment from said second compartment for attenuating noise from said first compartment and for acting as a leakage and fire barrier and isolating the hydraulic fluid in said second compartment from heat produced in said first compartment.

5. The excavator body structure of claim 4 wherein an engine coolant radiator and an hydraulic fluid radiator are placed within said structure in said first compartment.

6. The body structure of claim 4 wherein said fire-wall means extend transversely of a fore and aft axis of said body structure and further completely divide said body structure into said first and second compartments.

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System for cooling an hydraulic excavator

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