Construction machine

• US 7,828,097 B2
• Filed: 01/19/2006
• Issued: 11/09/2010
• Est. Priority Date: 07/05/2005
• Status: Expired due to Fees

• Current Assignee: Yanmar Company Limited (Yanmar Holdings Co., Ltd.)
• Original Assignee: Yanmar Company Limited (Yanmar Holdings Co., Ltd.)
• Inventors: Seino, Hideki, Kondou, Masami
• Primary Examiner(s): Shriver, II; J. Allen
• Assistant Examiner(s): Meyer; Jacob
• Application Number:
  US11/994,795
• Publication Number:
  US 20090199792A1
• Time in Patent Office: 1,755 Days
• Field of Search: 180/68.1, 180/68.4, 180/68.6, 180/69.24, 280/159, 280/847, 296/193.1, 165/99, 165DIG 93-DIG 99, 165DIG 311-DIG 313, 165/DIG.335, 165/DIG.337, 165/DIG.340
• US Class Current: 180/68.1
• 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 11/085 with adjustable shutters or blinds
• CPC Class Codes: B62D 25/10 Bonnets or lids , e.g. for trucks, tractors, busses, work vehicles for truck beds B60J7/1607; for boats B63B19/12; doors arranged at the vehicle rear B60J5/10; inlet covers for vehicle fuel tanks B60K15/05; for protecting non-occupants of a vehicle B60R21/38
• CPC Class Codes: E02F 9/0833 Improving access, e.g. for maintenance, steps for improving driver's access, handrails
• CPC Class Codes: E02F 9/0891 Lids or bonnets or doors or details thereof doors for cabins E02F9/163 takes precedence; for motor vehicles B62D25/10
• CPC Class Codes: F01P 11/10 Guiding or ducting cooling-air, to, or from, liquid-to-air heat exchangers
• CPC Class Codes: F01P 11/12 Filtering, cooling, or silencing cooling-air
• CPC Class Codes: F01P 2001/005 Cooling engine rooms
• CPC Class Codes: F01P 5/02 Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
• CPC Class Codes: Y02T 10/88 Optimized components or subsystems, e.g. lighting, actively controlled glasses

Abstract

An object is to provide a construction machine containing an engine (30) and a heat exchanger (31) in a bonnet (14), adapted for easy cleaning of a side of the heat exchanger (31) toward a cooling fan.

A space (29) into which a hand can be put is provided between a cooling fan 33 attached to the engine (30) and the heat exchanger (31) arranged so as to face to the cooling fan (33). A part covering a region from the cooling fan (33) to the heat exchanger (31) in the bonnet (14) from above and sides includes a separate cover (34). An opening part having a guard (36) is provided through a portion of the cover (34), the portion facing to the heat exchanger (31). The cover (34) is configured to be openable and closable. The cooling fan (33) is adapted to be of a discharge type. A plurality of the heat exchangers are arranged in a same plane.

Claims

1. A construction machine comprising:

a bonnet;

an engine arranged in the bonnet;

a cooling fan arranged in the bonnet and attached to the engine; and

a heat exchanger arranged in the bonnet and arranged so as to face the cooling fan, wherein;

a shroud is provided so as to surround a space between the cooling fan and the heat exchanger in the bonnet;

a maintenance hole for putting a hand into the space therethrough is provided through an upper face of the shroud;

a plate-like attaching plate is removably attached to the upper face of the shroud so as to cover the maintenance hole; and

a splitter for changing a blowing direction of cooling wind from the cooling fan is vertically installed downward from the attaching plate through the maintenance hole so as to be removably arranged in the space.

2. The construction machine according to claim 1, wherein:

a part covering a region from the cooling fan to the heat exchanger in the bonnet from above and sides includes a separate cover;

an opening part having a guard is provided through a portion of the cover, the portion of the cover facing the heat exchanger; and

the cover is configured to be openable and closable.

3. The construction machine according to claim 1, wherein the cooling fan arranged in the bonnet is adapted to be of a discharge type.

4. The construction machine according to claim 1, wherein a plurality of the heat exchangers are arranged in a same plane.

5. The construction machine according to claim 1, wherein the space arranged between the cooling fan and the heat exchanger is adapted to be in a substantially triangular shape in a plan view.