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An engine operated machine system includes an engine, a working machine driven by the engine, and a waste-heat recovery unit for recovering the waste heat of the engine, each being accommodated in a box-shaped case. The case is provided with a partition wall which partitions the inside of the case i

An engine operated machine system includes an engine, a working machine driven by the engine, and a waste-heat recovery unit for recovering the waste heat of the engine, each being accommodated in a box-shaped case. The case is provided with a partition wall which partitions the inside of the case into working-machine accommodating and electrical-equipment accommodating chambers, and which has a draft bore connecting the working-machine accommodating chamber to the electrical-equipment accommodating chamber. The case is also provided with a cooling-air intake port connecting the electrical-equipment accommodating chamber to the outside, a discharge port forcibly discharging, to the outside, air discharged from the working-machine accommodating chamber by an engine-driven fan, and an assist fan disposed in the draft bore and adapted to be operated, in response to the temperature in the working-machine accommodating chamber exceeding a predetermined value, to feed the air in the electrical-equipment accommodating chamber into the working-machine accommodating chamber.

대표청구항 ▼

1. An engine operated machine system comprising:an engine;a working machine driven by said engine; anda waste-heat recovery unit that recovers waste heat emitted by said engine, wherein said engine, said working machine, and said waste-heat recovery unit are accommodated in a box-shaped case,wherein

1. An engine operated machine system comprising:an engine;a working machine driven by said engine; anda waste-heat recovery unit that recovers waste heat emitted by said engine, wherein said engine, said working machine, and said waste-heat recovery unit are accommodated in a box-shaped case,wherein said box-shaped case comprises:a partition wall which partitions an interior of said case into a working-machine accommodating chamber, which accommodates said engine, said working machine and said waste-heat recovery unit, and an electrical-equipment accommodating chamber; the partition wall having a draft bore which connects said working-machine accommodating chamber to said electrical-equipment accommodating chamber;a cooling-air intake port which connects said electrical-equipment accommodating chamber to the outside; anda discharge port for discharging, to the outside, air forcibly discharged from said working-machine accommodating chamber by a fan driven by said engine, andwherein an assist fan is disposed in said draft bore and is adapted to be operated, in response to a temperature in said working-machine accommodating chamber exceeding a predetermined value, to feed the air in said electrical-equipment accommodating chamber into said working-machine accommodating chamber. 2. The engine operated machine system according to claim 1, wherein said partition wall extends vertically, and said draft bore is provided in a lower portion of said vertically extending partition wall. 3. The engine operated machine system according to claim 2, wherein at least said engine and said working machine are supported on a bottom of said box-shaped case with buffer members interposed therebetween, and said assist fan is mounted to said partition wall to blow the air within said electrical-equipment accommodating chamber toward said buffer members. 4. The engine operated machine system according to claim 2, wherein said electrical-equipment accommodating chamber has a labyrinth-shaped intake passage defined therein to guide the air from said cooling-air intake port to an upper portion of said electrical-equipment accommodating chamber and then guide the air through said electrical-equipment accommodating chamber to said draft bore. 5. The engine operated machine system according to claim 3, wherein said electrical-equipment accommodating chamber has a labyrinth-shaped intake passage defined therein to guide the air from said cooling-air intake port to an upper portion of said electrical-equipment accommodating chamber and then guide the air through said electrical-equipment accommodating chamber to said draft bore. 6. An engine operated machine system comprising:an engine;a working machine driven by said engine; anda waste-heat recovery unit that recovers waste heat emitted by said engine, wherein said engine, said working machine, and said waste-heat recovery unit are accommodated in a box-shaped case,wherein said box-shaped case comprises:a partition wall which extends vertically relative to a bottom surface of said box-shaped case to partition an interior of said case into a working-machine accommodating chamber, which accommodates said engine, said working machine and said waste-heat recovery unit, and an electrical-equipment accommodating chamber; the partition wall having a draft bore which connects said working-machine accommodating chamber to said electrical-equipment accommodating chamber at a lower portion of the partition wall;a cooling-air intake port which connects said electrical-equipment accommodating chamber to the outside; anda discharge port for discharging, to the outside, air forcibly discharged from said working-machine accommodating chamber by a fan driven by said engine,wherein said electrical-equipment accommodating chamber has a labyrinth-shaped intake passage defined therein for guiding the air from said cooling-air intake port to an upper portion of said electrical-equipment accommodating chamber and then guides the air to said draft bore, anda plurality of electrical components accommodated in said electrical-equipment accommodating chamber are mounted in a vertical arrangement to said partition wall. 7. The engine operated machine system according to claim 6, wherein the electrical component which generates a relatively large amount of heat is in a relatively lower position on said partition wall. 8. The engine operated machine system according to claim 7, wherein said intake passage has a vertically extending narrow passage section defined in a middle thereof, and a comb tooth-shaped heat-radiating plate is provided in said electrical component which generates the relatively large amount of heat, to protrude into said narrow passage section with a plurality of vertically extending passage portions therebetween. 9. The engine operated machine system according to claim 6, further including an assist fan which is disposed in said draft bore and adapted to be operated, in response to a temperature in a lower portion of said working-machine accommodating chamber exceeding a predetermined value, to feed the air in said electrical-equipment accommodating chamber into said working-machine accommodating chamber. 10. The engine operated machine system according to claim 9, wherein at least said engine and said working machine are supported on a bottom of said box-shaped case with buffer members interposed therebetween, and said assist fan is mounted to said partition wall so that said assist fan blows the air within said electrical-equipment accommodating chamber toward said buffer members.