This application is a US National Stage of PCT Application No. PCT/IB2014/000270, filed on Feb. 3, 2014, the disclosure of which is incorporated herein by reference.
The invention relates generally to refrigeration systems and, more particularly, to a transport refrigeration system suitable for controlling the temperature of a conditioned space of a vehicle.
Transport refrigeration systems for straight trucks and delivery vans commonly utilize separate condenser and evaporator sections or units. The evaporator unit is generally mounted in a conditioned space associated with the vehicle and the condenser unit is generally mounted on the nose or front wall of a straight truck, above the cabin.
To perform maintenance on the engine of the truck, the cabin is pivoted forward, away from the conditioned space. In many systems, a sufficient clearance exists between the top of the cabin and the condenser unit, allowing the cabin to pivot freely. However, the overall cabin height of some newer vehicles has been increased to improve driver comfort and to be compliant with European emission regulation Euro 6. As a result of this increased cabin height, the condenser unit extends into the path of rotation of the cabin. This interference limits the rotation of the cabin and therefore the access for performing maintenance on the engine.
According to an aspect of the invention, a truck is provided including an engine, a cabin, and a conditioned spaced defined by a plurality of adjacent wall members including a front wall member. A transport refrigeration unit is configured to control a temperature within the conditioned space include an evaporator unit and a condenser unit. The evaporator unit is mounted within the conditioned space. The condenser unit is operably coupled to the evaporator unit and is mounted to an exterior surface of the front wall member. The condenser unit is configured to move between an operating position and a clearance position.
According to another aspect of the invention, a method of moving a condenser unit of a transport refrigeration system between an operating position and a clearance position is provided. The condenser unit includes a slide member slidably coupled to a support bracket mounted to a front wall member of a truck. The condenser unit is moved by operating a device coupled to the slide member to move the slide member relative to the support bracket along a slide axis.
These and other advantages and features will become more apparent from the following description taken in conjunction with the drawings.
The subject matter, which is regarded as the invention, is particularly pointed out and distinctly claimed in the claims at the conclusion of the specification. The foregoing and other features, and advantages of the invention are apparent from the following detailed description taken in conjunction with the accompanying drawings in which:
Referring now to
Referring now to
Referring now to
To connect the condenser unit 22 to the front wall member 16, each of the plurality of slide members 40 is slidably inserted into the opening 34 of a corresponding support bracket 32. The shape or contour of the support brackets 32 is configured to obstruct movement of the slide member 40 away from the plane of the surface 24. Although the slide members 40 are illustrated and described herein as being received within the opening 34 of the support brackets 32, other configurations, such as where the slide members 40 are arranged about an exterior of the support brackets 32 for example, are within the scope of the invention. In one embodiment, a first end 46 of each of the slide members 40 includes an oversized head 48. The oversized head 48 is generally larger than the opening 34 of the support bracket 32 and is configured to limit the downward movement of the slide member 40 relative to a support bracket 32. Therefore, when the oversized head 48 is in contact with the first end 36 of the support bracket 32, the condenser unit 22 is in its lowest possible mounted position relative to the surface 24.
The slide members 40 are configured to slide along the sliding axis A, within the support brackets 32, such that the condenser unit 22 is movable between a first operating position (
When the condenser unit 22 is in the operating position, additional fasteners 50 (
As shown in
By slidably mounting the condenser unit 22 to the surface 24 of the front wall member 16, the condenser unit 22 may be easily moved vertically between an operating position and a clearance position. When the condenser unit 22 is in the clearance position, sufficient clearance exists such that the cabin may be rotate freely to allow for maintenance of the engine.
While the invention has been described in detail in connection with only a limited number of embodiments, it should be readily understood that the invention is not limited to such disclosed embodiments. Rather, the invention can be modified to incorporate any number of variations, alterations, substitutions or equivalent arrangements not heretofore described, but which are commensurate with the spirit and scope of the invention. Additionally, while various embodiments of the invention have been described, it is to be understood that aspects of the invention may include only some of the described embodiments. Accordingly, the invention is not to be seen as limited by the foregoing description, but is only limited by the scope of the appended claims.
Filing Document | Filing Date | Country | Kind |
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PCT/IB2014/000270 | 2/3/2014 | WO | 00 |
Publishing Document | Publishing Date | Country | Kind |
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WO2015/114396 | 8/6/2015 | WO | A |
Number | Name | Date | Kind |
---|---|---|---|
3917310 | Mitsuishi | Nov 1975 | A |
4109485 | Grosskopf | Aug 1978 | A |
4811569 | Welch et al. | Mar 1989 | A |
5186015 | Roehrich et al. | Feb 1993 | A |
5582025 | Dubin | Dec 1996 | A |
6279334 | Ishikawa | Aug 2001 | B1 |
6357248 | Bongaards et al. | Mar 2002 | B1 |
6374626 | Takahashi | Apr 2002 | B1 |
7472946 | Hollenbeck et al. | Jan 2009 | B2 |
7921659 | Quesada et al. | Apr 2011 | B2 |
8286437 | Sanders | Oct 2012 | B2 |
8590330 | Walker | Nov 2013 | B2 |
20060152119 | Park | Jul 2006 | A1 |
20080179489 | Renken et al. | Jul 2008 | A1 |
20120193109 | Moore et al. | Aug 2012 | A1 |
Number | Date | Country |
---|---|---|
3227381 | Jan 1984 | DE |
3806911 | Sep 1989 | DE |
202008012202 | Jan 2009 | DE |
0366616 | May 1990 | EP |
1957347 | Aug 2008 | EP |
2163415 | Mar 2010 | EP |
2442055 | Apr 2012 | EP |
1338300 | Nov 1973 | GB |
H0999773 | Apr 1997 | JP |
Entry |
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International Search Report and Written Opinion for Application No. PCT/IB2014/000270 dated Nov. 17, 2014; 12 pgs. |
CN Office Action with translation issued in Chinese Patent Application No. 2014800748218 dated Feb. 2, 2018, 28 pages. |
Dai, Wen-hui., “Structure and Maintanence of Air Conditioners of Imported Vehicle”, Chong Qing Press, Dec. 31, 1998, 8 pp. |
Second Office Action Issued by the State Intellectual Property Office of the People's Republic of China dated Aug. 24, 2018, for Application No. 2014800748218 (24 pp.). |
Number | Date | Country | |
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20170080780 A1 | Mar 2017 | US |