Hydraulic-oil quantity distribution system for engineering vehicle hydraulic power air-conditioner

Abstract

The invention discloses a hydraulic oil distributing system for engineering vehicle hydraulic power air-conditioner, belonging to the engineering vehicle air-conditioner, comprising: host machine hydraulic pump, speed regulating valve, air-conditioning motor, coupling, air-conditioning compressor, turning buffer valve, turning motor, oil tank, and proportional valve, where the oil inlet of the proportional valve is coupled with the hydraulic pump equipped with air-conditioning system host machine and the oil outlet of the proportional valve is divided into two paths: one is connected with the turning motor through the hydraulic pipeline and the speed regulating valve and the other is connected with the air-conditioning motor through the hydraulic pipeline and the turning buffer valve. And its advantage: the invention adopts proportional valve to control distributing proportion of hydraulic oil pumped out from the hydraulic pump and make it feed the hydraulic oil in proportion into the speed regulating valve and the turning buffer valve respectively; the structure is simple, saving cost of air-conditioning system and the invention effectively controls reliability of air-conditioning system.

Description

technical field [0001] The invention relates to an air conditioner for an engineering vehicle, in particular to a hydraulic oil volume distribution system for a hydraulic power air conditioner for an engineering vehicle. Background technique [0002] In the current hydraulic power engineering vehicle air conditioner system, the hydraulic part is connected in series in the oil return circuit of the main engine. When the oil return volume of the main engine increases, the air conditioning system will generate a large system pressure, resulting in an excessive load on the main engine. When the air conditioner is used, it will inevitably affect the rotation of the main engine, and the phenomenon of insufficient working power of the main engine will occur. In serious cases, it will also cause problems such as bursting of the hydraulic pipeline due to excessive system pressure. Contents of the invention [0003] The object of the present invention is to provide a hydraulic oil v...

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Problems solved by technology

[0002] In the current hydraulic power engineering vehicle air conditioner system, the hydraulic part is connected in series in the oil return circuit of the main engine. When the oil return volume of the main engine increases, the air conditioning system will generate a large system pressure, resulting in an excessive load on the main engine. When the air conditioner is used, it will inevitably affect the rotation of the main engine, and the phenomenon of insufficient working power of the main engine will occur. In serious cases, it will also cause problems such as bursting of the hydraulic pipeline due to excessive system pressure.

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