Investigation in Temperature Control of Hydraulic Systems in Rough Terrain Fork Trucks
Abstract
The problem of overheating in hydraulic systems of mobile equipment has not been given full consideration nor have the ramifications been completely understood by designers of such equipment. The effect of excessive heat can be injurious to the operator, the equipment and to persons in the proximity of the equipment. In industrial applications of hydraulic equipment, space has not been one of the problems. Hydraulic systems designed on this premise provided for a reservoir tank of sufficient fluid capacity to dissipate the heat or a system in which a heat exchanger has been incorporated. This approach cannot be applied to mobile hydraulic systems. Space is not available for large fluid reservoirs or heat exchangers. The situation is usually more aggravated by the radiation of heat from the engine as well as crowding components of the system into a small enclosed area in which the heat from the system itself has to be considered. The designer, evaluating the heat effect, takes into consideration the type of operation for which the equipment was intended. For commercial materials handling equipment this approach has been for the most part valid. The hydraulic system is not taxed to the degree that heat has been a factor. Idle time between cycles has been sufficient to allow cooling of the fluid to a safe temperature level. However, in Military applications, where unloading operations are on a 24-hour per day basis and long road marches are a required operational feature, temperature control must be built in.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1963
- Accession Number
- ADP014613
Entities
People
- Irving Tarlow