JP5430423B2 - Engine working machine - Google Patents

Description

  The present invention relates to an engine working machine, and more particularly to a portable engine working machine that drives a working machine such as a generator, a compressor, and a hydraulic unit by a diesel engine.

  At sites such as construction and civil engineering, or at disaster sites and shelters, portable engine machines that use diesel engines to drive various machines such as generators, compressors, and hydraulic units are often used. These engine working machines generally contain working machines such as a generator, a compressor, a hydraulic unit, etc. in a casing having a soundproof structure, an oil bank is provided in the lower part of the casing, and a diesel engine is installed in the oil bank. A fuel tank for storing the fuel is accommodated, and even if fuel or lubricating oil leaks from the engine or fuel tank, these oil components are prevented from flowing out (see, for example, Patent Document 1). ).

JP 2008-69759 A

  However, in a portable engine work machine that is often used outdoors, rainwater that has entered the casing accumulates in the oil breakwater, so the drain cock is opened to drain the water accumulated in the oil breakwater. However, if the drainage operation is neglected, the fuel tank is immersed in water for a long time, which may cause corrosion of the fuel tank.

  Therefore, an object of the present invention is to provide an engine working machine capable of preventing the fuel tank from being corroded by rainwater that has entered the casing without impairing the function of the oil barrier.

  In order to achieve the above object, an engine work machine according to the present invention is provided with an oil breakwater provided with a drain at a lower part of a casing housing a work machine and a diesel engine for driving the work machine, and a fuel is provided in the oil breakage bank. In the engine working machine that accommodates a tank, a recovery tank that collects intrusion water that has entered the casing and a tank storage tank that accommodates the fuel tank are provided in the oil barrier, and the casing, the oil barrier, A guide plate is provided for guiding the intruded water that has entered the casing to the recovery tank, and the water in the recovery tank is supplied to the upper part of the recovery tank when the recovery tank becomes full. The overflow part for overflowing into the storage tank is provided with a drain at the lower part of the recovery tank, and the recovery tank and the tank storage tank are partitioned by a partition plate provided in the oil barrier Shi It may be.

  The guide plate may be provided on the upper part of the oil barrier, on a frame at the lower part of the casing, or on a relay frame that connects the casing and the oil barrier, and the frame at the lower part of the casing. And the oil breakwater may be integrally formed.

  According to the engine working machine of the present invention, rainwater (intrusion water) that has entered the casing from an exhaust port, an intake port, or the like formed in the casing is collected in the recovery tank by the guide portion. It can suppress that it accumulates around, and can prevent that a fuel tank corrodes by intrusion water. In addition, when a large amount of rainwater enters and the recovery tank becomes full, the intrusion water in the recovery tank flows into the tank storage tank beyond the overflow section. There will be no leakage.

It is explanatory drawing which shows the 1st example of an engine working machine of this invention. It is II-II sectional drawing of FIG. FIG. 3 is a sectional view taken along line III-III in FIG. 1. It is explanatory drawing which shows the 2nd example of an engine working machine of this invention. It is VV sectional drawing of FIG. It is VI-VI sectional drawing of FIG. It is explanatory drawing which shows the 3rd form example of the engine working machine of this invention. It is explanatory drawing which shows the 4th example of an engine working machine of this invention. It is VIII-VIII sectional drawing of FIG.

  FIGS. 1 to 3 show a first embodiment of the engine working machine according to the present invention. The engine working machine 11 includes a working machine such as a generator, a compressor, and a hydraulic unit arranged on a gantry 12, and the working machine. Equipment such as a diesel engine 13 that drives the machine is housed in a casing 14 having a soundproof structure, and oil such as fuel leaked from the diesel engine 13 flows out to the bottom of the gantry 12. An oil breakwater 15 is provided integrally for prevention. Fuel is supplied to the diesel engine 13 from a fuel tank 16 housed in the oil breakwater 15, and output from the work machine is output from an output section provided on the outer surface of the casing 14.

  Further, the casing 14 is provided with a plurality of intake ports 14a, 14a and an exhaust port 14b. By the action of the radiator fan 18 of the radiator 17, as shown by a solid line arrow A in FIG. Air that has been heated by sucking outside air (air) into the casing 14 and cooling engine cooling water by the radiator 17 is discharged from the exhaust port 14b to the outside.

  The oil breakwater 15 has a box shape with an opening on the upper frame 12 side, and a partition plate 19 having a height lower than the height of the peripheral wall of the oil breakwater 15 is provided in a liquid-tight state. The partition wall 19 divides the inside of the oil barrier 15 into a large-capacity tank storage tank 20 that stores the fuel tank 16 and a small-capacity recovery tank 21 that collects rainwater (intrusion water). The tank storage tank 20 and the recovery tank 21 are provided with drain cocks 20a and 21a, respectively.

  A guide plate 22 that guides intrusion water such as rainwater sucked together with outside air from the intake port 14 a to the recovery tank 21 during operation of the engine work machine 11 is laid inside the gantry 12 located at the lower part of the casing 14. . This guide plate 22 is provided so as to cover the entire upper surface of the tank storage tank 20 excluding parts such as the fuel filler opening 16a of the fuel tank 16 projecting upward from the inside of the oil breakwater 15, and on the collection tank 21 side. The one end portion 22 a extends to the upper side of the collection tank 21 and is bent downward toward the inside of the collection tank 21.

  In the engine working machine 11 provided with such a recovery tank 21 and the guide plate 22, intrusion water such as rainwater that has entered the casing 14 flows on the upper surface of the guide plate 22 as indicated by a broken line arrow B in FIG. 1. Then, it is collected in the collection tank 21 and drained from the drain cock 21a by a drainage operation performed as appropriate. Thereby, there is no possibility that the intrusion water flows into the tank storage tank 20 and corrodes the fuel tank 16. In addition, when a large amount of rainwater enters or the drainage operation of the recovery tank 21 is neglected and the recovery tank 21 becomes full, the intrusion water is recovered beyond the overflow section at the upper end of the partition plate 19. Since it flows into the tank storage tank 20 from the tank 21, the intrusion water does not flow out to the outside of the engine work machine 11 and contaminate the surroundings. The intrusion water accumulated in the tank storage tank 20 is appropriately drained. By performing, it can drain from the drain cock 20a.

  4 to 6 show a second embodiment of the present invention. In this embodiment, the same guide plate 23 is provided at the upper end of the oil barrier 15. Thereby, since the casing 14 including the various devices above the gantry 12 may have the same structure as the conventional one, it is possible to cope with existing engine work machines by simply replacing the oil barrier portion. In the following embodiments, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 7 shows a third embodiment of the present invention. In this embodiment, the same guide plate 25 is provided on the relay mount 24 for connecting the mount 12 and the oil barrier 15. Also in the present embodiment, the casing 14 including the various devices above the gantry 12 may have the same structure as the conventional one. Therefore, even an existing engine working machine can be dealt with by simply replacing the oil barrier portion.

  8 and 9 show a fourth embodiment of the present invention. In this embodiment, the gantry 12 and the oil barrier 15 of the casing 14 are integrally formed, and the upper portion of the tank storage tank 20 is formed. The same guide plate 26 as described above is provided at the covering position, in this embodiment, on the top surface of the gantry 12. In addition, a tank cover 14 c for taking the fuel tank 16 in and out of the tank storage tank 20 in the oil barrier 15 is detachably provided on one side of the casing 14.

  In addition, the magnitude | size and shape of a collection tank are arbitrary, and it can form according to the magnitude | size of an oil breakwater, a fuel tank, etc. Moreover, it is good also as a collection tank by inserting the box-shaped container separately formed in the oil barrier. Furthermore, the overflow section can be formed by a notch or the like provided in a partition plate or a box-shaped container.

  DESCRIPTION OF SYMBOLS 11 ... Engine working machine, 12 ... Mount, 13 ... Diesel engine, 14 ... Casing, 14a ... Intake port, 14b ... Exhaust port, 14c ... Tank cover, 15 ... Oil barrier, 16 ... Fuel tank, 16a ... Refueling port, DESCRIPTION OF SYMBOLS 17 ... Radiator, 18 ... Radiator fan, 19 ... Partition plate, 20 ... Tank accommodating tank, 20a ... Drain cock, 21 ... Collection tank, 21a ... Drain cock, 22, 23, 25, 26 ... Guide plate, 22a ... One end , 24 ... Relay stand

Claims (6)

An engine work machine provided with an oil breakwater having a drain at a lower part of a casing housing a work machine and a diesel engine that drives the work machine, and in the engine work machine containing a fuel tank in the oil breakage bank, in the oil breakage bank, A recovery tank for recovering the intrusion water that has entered the casing and a tank storage tank for storing the fuel tank are provided, and the intrusion water that has entered the casing is interposed between the casing and the oil barrier. A recovery plate is provided on the upper part of the recovery tank, and an overflow section for allowing the water in the recovery tank to overflow into the tank storage tank when the recovery tank becomes full. Engine working machine characterized by providing drains at the bottom of each. The engine working machine according to claim 1, wherein the recovery tank and the tank storage tank are partitioned by a partition plate provided in the oil barrier. The engine work machine according to claim 1, wherein the guide plate is provided on an upper portion of the oil breakwater. The engine work machine according to claim 1 or 2, wherein the guide plate is provided on a gantry at the lower part of the casing. The engine work machine according to claim 1 or 2, wherein the guide plate is provided on a relay mount that connects the casing and the oil breakwater. The engine working machine according to claim 1 or 2, wherein the frame under the casing and the oil breakwater are integrally formed.

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