Drainage structure for a work vehicle

Patent metadata

Field	Value
Publication number	US-9587376-B1
Application number	US-201514889530-A
Country	US
Kind code	B1
Filing date	Sep 14, 2015
Priority date	Sep 14, 2015
Publication date	Mar 7, 2017
Grant date	Mar 7, 2017

Abstract

An engine compartment accommodates an engine. A cooling device is configured to cool the engine. A cooling compartment accommodates the cooling device. A division wall is disposed between the engine compartment and the cooling compartment. A ventilation portion includes a hole for permitting air to pass therethrough and is provided on a top surface of the engine compartment. A water receiving member is disposed under the ventilation portion within the engine compartment. A water catchment member is disposed in the cooling compartment and catches water received by the water receiving member. A drainage pathway is connected to the water catchment member and leads the water to a predetermined drainage position.

First claim

The invention claimed is:

1. A work vehicle, comprising:
an engine;
an engine compartment accommodating the engine;
a cooling device configured to cool the engine;
a cooling compartment accommodating the cooling device;
a division wall disposed between the engine compartment and the cooling compartment;
a ventilation portion provided on a top surface of the engine compartment, the ventilation portion including a hole for permitting air to pass therethrough;
a water receiving member disposed under the ventilation portion within the engine compartment;
a water catchment member disposed in the cooling compartment to catch water received by the water receiving member; and
a drainage pathway connected to the water catchment member to lead the water to a predetermined drainage position.

2. The work vehicle according to claim 1 , wherein
the water catchment member includes a bottom plate and a vertical wall rising from a cooling compartment side edge of the bottom plate.

3. The work vehicle according to claim 2 , wherein
the bottom plate includes a water catchment hole, and
the drainage pathway is connected to the water catchment hole.

4. The work vehicle according to claim 3 , wherein
the vertical wall includes a taper wall tilting toward the water catchment hole in a vehicle top view.

5. The work vehicle according to claim 2 , further comprising
a partition plate disposed between the engine compartment and the cooling compartment, the partition plate upwardly extending from the bottom plate,
the partition plate including a hole for permitting water to pass therethrough when the water flows from the water receiving member to the water catchment member.

6. The work vehicle according to claim 1 , wherein
the drainage pathway downwardly extends from the water catchment member within the cooling compartment.

7. The work vehicle according to claim 6 , wherein
the predetermined drainage position is located lower than the engine, and
the drainage pathway extends from the water catchment member to the predetermined drainage position through the cooling compartment.

8. The work vehicle according to claim 6 , wherein
the predetermined drainage position is located away from the division wall in a direction opposite to the engine compartment within the cooling compartment, and
the drainage pathway extends from the water catchment member to the predetermined drainage position within the cooling compartment.

9. The work vehicle according to claim 6 , further comprising
an engine auxiliary machine disposed in the engine compartment, the engine auxiliary machine being located lower than a lower end of the division wall,
the predetermined drainage position being located lower than the engine auxiliary machine, and
the drainage pathway extending from the water catchment member to the predetermined drainage position through the cooling compartment.

10. The work vehicle according to claim 6 , further comprising
an engine auxiliary machine disposed in the engine compartment, the engine auxiliary machine being located lower than a lower end of the division wall,
the predetermined drainage position being located away from the division pall in a direction opposite to the engine auxiliary machine within the cooling compartment, and
the drainage pathway extending from the water catchment member to the predetermined drainage position within the cooling compartment.

11. The work vehicle according to claim 4 , further comprising
a partition plate disposed between the engine compartment and the cooling compartment, the partition plate upwardly extending from the bottom plate,
the partition plate including a hole for permitting water to pass therethrough when the water flows from the water receiving member to the water catchment member.

12. The work vehicle according to claim 11 , wherein
the drainage pathway downwardly extends from the water catchment member within the cooling compartment.

13. The work vehicle according to claim 12 , wherein
the predetermined drainage position is located lower than the engine, and
the drainage pathway extends from the water catchment member to the predetermined drainage position through the cooling compartment.

14. The work vehicle according to claim 12 , wherein
the predetermined drainage position is located away from the division wall in a direction opposite to the engine compartment within the cooling compartment, and
the drainage pathway extends from the water catchment member to the predetermined drainage position within the cooling compartment.

15. The work vehicle according to claim 12 , further comprising
an engine auxiliary machine disposed in the engine compartment, the engine auxiliary machine being located lower than a lower end of the division wall,
the predetermined drainage position being located lower than the engine auxiliary machine, and
the drainage pathway extending from the water catchment member to the predetermined drainage position through the cooling compartment.

16. The work vehicle according to claim 12 , further comprising
an engine auxiliary machine disposed in the engine compartment, the engine auxiliary machine being located lower than a lower end of the division wall,
the predetermined drainage position being located away from the division pall in a direction opposite to the engine auxiliary machine within the cooling compartment, and

the drainage pathway extending from the water catchment member to the predetermined drainage position within the cooling compartment.

Assignees

• Komatsu Mfg Co Ltd

Inventors

• Tanaka Yutaka
• Kamimae Takeshi
• Nishihara Ken
• Ohchi Yasufumi

Classifications

• E02F3/34

  with bucket-arms {, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms (with a single arm E02F3/283)} directly pivoted on the frames of tractors or self-propelled machines · CPC title

• B62D49/00

  Tractors (of walk type B62D51/04; endless- track features B62D55/00 {; transport specially adapted for underground galleries E21F13/02}) · CPC title

• E02F9/0866 Primary

  Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment · CPC title

• B60K11/04

  Arrangement or mounting of radiators, radiator shutters, or radiator blinds · CPC title

• E02F9/0891

  Lids or bonnets or doors or details thereof (doors for cabins E02F9/163 takes precedence; for motor vehicles B62D25/10) · CPC title