Hydraulic power system for bus

Abstract

The invention relates to a hydraulic power system of bus, in particular to a hydraulic power system of bus which uses a small diesel engine to drive a hydraulic oil pump to supply energy to a hydraulic accumulator in a hydraulic system and a hydraulic motor to drive a bus to run. In the invention, a hydraulic power device of the small diesel engine and an electrical hydraulic power device consist of a power output system; the small diesel is connected with a DC power generator, a waste-gas turbine accelerator, a variable flow hydraulic pump and a one-way valve; the hydraulic pump is connected with an overflow safety valve, a manual relief valve, a filter and a hydraulic oil tank; a clutch is connected between the hydraulic motor and the gear box; the gear box and the vehicle wheel are connected by a transmission shaft to transmit power; both ends of the emergency hydraulic oil pump are respectively connected with the hydraulic oil tank, the one-way valve and a flow restriction valve. The invention has the advantages of simple structure, convenience in operation, low energy consumption, low noise, full oil burning, reduced emission of waste smoke, mist, gas and dust, energy consumption saving, stable running of the vehicle, and wide application to hydraulic power systems of the urban buses.

Description

Technical field: [0001] The invention relates to a hydraulic power system of a bus, in particular, a small diesel engine is used to drive a hydraulic oil pump to provide energy to a hydraulic accumulator in the hydraulic system, and a hydraulic motor drives the bus to run. Background technique: [0002] At present, for the internal combustion engine on the bus, its defect is that the power is transmitted mechanically, and its power is variable. When idling and running at low speed, the power and torque are very small. In the process of starting and accelerating, a large amount of black Smoke pollutes the urban air environment and increases fuel consumption; as the speed increases, the power and torque increase, but at this time the bus is approaching the platform, and the diesel engine resumes idling. Generally, the distance between urban bus stops does not exceed two kilometers. Frequent starting, acceleration, and braking increase the fuel consumption of buses. Generally, ...

AI Technical Summary

Problems solved by technology

[0002] At present, for the internal combustion engine on the bus, its defect is that the power is transmitted mechanically, and its power is variable. When idling and running at low speed, the power and torque are very small. In the process of starting and accelerating, a large amount of black Smoke pollutes the urban air environment and increases fuel consumption; as the speed increases, the power and torque increase, but at this time the bus is approaching the platform, and the diesel engine resumes idling

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