Dump truck radiator

• US 9,783,041 B2
• Filed: 02/27/2014
• Issued: 10/10/2017
• Est. Priority Date: 02/27/2014
• Status: Active Grant

• Current Assignee: Komatsu Ltd.
• Original Assignee: Komatsu Ltd.
• Inventors: Uranaka, Kyouji, Maeda, Tatsuya, Jinno, Tomoko
• Primary Examiner(s): Walters, John
• Assistant Examiner(s): TRIGGS, JAMES J
• Application Number:
  US15/117,997
• Publication Number:
  US 20170008386A1
• Time in Patent Office: 1,321 Days
• CPC Class Codes: B60G 2200/144 with two lateral arms forming a parallelogram
• CPC Class Codes: B60G 2200/422 Driving wheels or live axles
• CPC Class Codes: B60G 2200/44 steerable
• CPC Class Codes: B60G 2300/09 Construction vehicles, e.g. graders, excavators
• CPC Class Codes: B60G 3/20 all arms being rigid
• CPC Class Codes: B60G 7/005 Ball joints B60G7/006 takes precedence; for steering linkage B62D7/16; ball joints per se F16C11/06
• CPC Class Codes: B60K 1/02 comprising more than one electric motor
• CPC Class Codes: B60K 11/02 with liquid cooling
• CPC Class Codes: B60K 11/04 Arrangement or mounting of radiators, radiator shutters, or radiator blinds B60K11/085 takes precedence
• CPC Class Codes: B60K 11/06 with air cooling
• CPC Class Codes: B60K 13/02 concerning intake
• CPC Class Codes: B60K 13/06 using structural parts of the vehicle as ducts, e.g. frame parts
• CPC Class Codes: B60K 17/046 with planetary gearing having orbital motion
• CPC Class Codes: B60K 2001/006 the electric motors
• CPC Class Codes: B60K 2005/003 the internal combustion or jet propulsion unit is arranged between the front and the rear axle
• CPC Class Codes: B60K 2007/0046 the motor moving together with the vehicle body, i.e. moving independently from the wheel axle
• CPC Class Codes: B60K 2007/0092 the motor axle being coaxial to the wheel axle
• CPC Class Codes: B60K 5/02 with the engine main axis, e.g. crankshaft axis, substantially in or parallel to the longitudinal centre line of the vehicle
• CPC Class Codes: B60K 5/10 providing for ready detachment of engine
• CPC Class Codes: B60K 7/0007 the motor being electric
• CPC Class Codes: B60L 1/02 : to electric heating circuits
• CPC Class Codes: B60L 2240/36 : Temperature of vehicle components or parts
• CPC Class Codes: B60L 2240/425 : Temperature
• CPC Class Codes: B60L 2240/445 : Temperature
• CPC Class Codes: B60L 7/02 : Dynamic electric resistor braking B60L7/22 takes precedence
• CPC Class Codes: B60P 1/04 : with a tipping movement of load-transporting element dredgers or soil-shifting machines E02F3/00
• CPC Class Codes: B60Y 2200/142 : Heavy duty trucks
• CPC Class Codes: B62D 21/03 : transverse members providing body support
• CPC Class Codes: B62D 21/11 : with resilient means for suspension , e.g. of wheels or engine; sub-frames for mounting engine or suspensions
• CPC Class Codes: B62D 21/17 : forming fluid or electrical conduit means or having other means to accommodate the transmission of a force or signal
• CPC Class Codes: B62D 21/186 : for building site vehicles or multi-purpose tractors tracked vehicles B62D55/10; tractors in general B62D49/00; building site vehicles in general E02F; lift-trucks B66F
• CPC Class Codes: B62D 7/00 : Steering linkage; Stub axles or their mountings B62D13/00 takes precedence; power-assisted or power-driven steering B62D5/00
• CPC Class Codes: Y02T 10/64 : Electric machine technologies in electromobility

Abstract

A dump truck includes: a vehicle body frame extending in a travel direction; cooled objects in a form of an engine and an aftercooler; a first radiator and a second radiator configured to exchange heat between a cooling air and a cooling water after cooling the engine and the aftercooler, in which the first radiator is disposed to an outside of a first of the vehicle body frame in a vehicle width direction and the second radiator is disposed to an outside of a second side of the vehicle body frame in the vehicle width direction.

Claims

1. A dump truck comprising:

a vehicle body frame extending in a travel direction; and

at least a pair of radiators configured to exchange heat between a cooling air and a cooling water after cooling a to-be-cooled object, wherein

a first one of the pair of radiators projects laterally outward relative to a first side of the vehicle body frame in a vehicle width direction, and

a second one of the pair of radiators projects laterally outward relative to a second side of the vehicle body frame in the vehicle width direction.

2. The dump truck according to claim 1, wherein

the pair of radiators are disposed substantially in a middle of the vehicle body frame in the travel direction.

3. The dump truck according to claim 1, further comprising:

tires provided to a first side and a second side of the vehicle body frame in the travel direction and both the first and second sides of the vehicle body frame in the vehicle width direction, wherein

the pair of radiators are disposed between the tires provided to the first and second sides of the vehicle body frame in the travel directions.

4. The dump truck according to claim 1, further comprising:

an engine mounted on the vehicle body frame, and

a water-cooling type aftercooler configured to cool a charge air to be fed to the engine, wherein

the first one of the pair of radiators is configured to exchange heat between the cooling air and the cooling water after cooling the engine, and

the second one of the pair of radiators is configured to exchange heat between the cooling air and the cooling water after cooling the aftercooler.

6. The dump truck according to claim 1, further comprising:

tires;

electric motors configured to drive the tires; and

a pair of brake resistors configured to convert kinetic energy of the tires to electric energy based on the tires being braked,

wherein the pair of brake resistors are disposed at either one of the pair of radiators.

7. The dump truck according to claim 3, wherein the first one of the pair of radiators is disposed in a first area defined between the tires along the travel direction on the first side of the vehicle body frame, and the second one of the pair of radiators is disposed in a second area formed between the tires along the travel direction on the second side of the vehicle body frame.

8. The dump truck according to claim 1, wherein the entire portion of the first one of the pair of radiators is positioned outside of the vehicle body frame in the vehicle width direction, and the entire portion of the second one of the pair of radiators is positioned outside of the vehicle body frame in the vehicle width direction.

5. A dump truck comprising:

a vehicle body frame extending in a travel direction;

an engine mounted on the vehicle body frame;

a water-cooling type aftercooler configured to cool a charge air to be fed to the engine;

a first radiator configured to exchange heat between the cooling air and the cooling water after cooling the engine;

a second radiator configured to exchange heat between the cooling air and the cooling water after cooling the aftercooler; and

tires provided to a first side and a second side of the vehicle body frame in the travel direction and a first side and a second side thereof in a vehicle width direction, wherein

the first radiator projects laterally outward relative to the first side of the vehicle body frame in the vehicle width direction,

the second radiator projects laterally outward relative to the second side of the vehicle body frame in the vehicle width direction,

the first and second radiators are disposed substantially in a middle of the vehicle body frame in the travel direction and between the tires provided to the first and second sides of the vehicle body frame in the travel direction, and

sucking type cooling fans configured to suck an outer air inward as the cooling air from an outside of the vehicle body frame are respectively disposed to a side of the first radiator near the vehicle body frame and to a side of the second radiator near the vehicle body frame.

9. The dump truck according to claim 5, wherein the entire portion of the first one of the pair of radiators is positioned outside of the vehicle body frame in the vehicle width direction, and the entire portion of the second one of the pair of radiators is positioned outside of the vehicle body frame in the vehicle width direction.