WO2005088120A1

WO2005088120A1 - An environmental protection type oil hydraulic engine

Info

Publication number: WO2005088120A1
Application number: PCT/CN2004/000228
Authority: WO
Inventors: Wenjuan Liu; Jingyu Qi; Yongping Chen
Original assignee: Wenjuan Liu; Jingyu Qi; Yongping Chen
Priority date: 2004-03-16
Filing date: 2004-03-19
Publication date: 2005-09-22
Also published as: CN1670383A

Abstract

An environmental protection type oil hydraulic engine comprises: four oil hydraulic cylinders, the bottom of each of which is hinged on the base so as to swing forward and backward, and each of which is connected with oil pump via an oil pipes which are provided with control valves, the oil pump is attached to the motor which is connected with a power source, a connection rod of each of oil hydraulic cylinders is connected with one of four connection rod journals of a common crankshaft respectively, each of connection rod journals is connected with the center axle of the crankshaft through a pair of cams, the four connection rod journals are spaced equally circumferentially with respect to the center axis of the crankshaft, angle of phase between the adjacent connection rod journals is equal to or more than 90 degree; the front end shaft and the back end shaft of the crankshaft are connected with power output shaft by a drive member. The oil hydraulic engine according to the invention has a lot of advantages as follows: it neither consumes fuel, nor produces high temperature and high pressure and discharges harmful gas, while it has low cost in manufacture, and long service life, and is convenient to use and easy to maintain.

Description

Technical Field The present invention relates to a machine capable of outputting power to perform work, and more particularly to an engine manufactured using a hydraulic transmission principle. BACKGROUND OF THE INVENTION Existing engines used in automobiles all generate power and work by burning gasoline or diesel. The disadvantages are:

1. It consumes a lot of precious oil, and oil is a non-renewable energy source.

2. A large amount of harmful gases were emitted, which polluted the atmosphere.

3. The structure of the engine is complex, there are many auxiliary supporting systems, and the cost is high. The fuel will generate high temperature and pressure during the combustion process, which will easily damage the engine and cause high maintenance costs.

4. Noise is loud when the engine is working. SUMMARY OF THE INVENTION The purpose of the present invention is to solve the above problems and provide an environmentally-friendly hydraulic power machine, which does not burn fuel, emit no harmful gas, has low noise, high power, easy adjustment, simple structure, and easy operation.

The purpose of the present invention is achieved as follows:

An environmentally-friendly hydraulic power machine, which has four hydraulic cylinders. The bottom end of each hydraulic cylinder is hinged to the base and can swing forward and backward. Each hydraulic cylinder is connected to an oil pump through an oil pipe. The oil pipe is equipped with a control The valve, the oil pump is connected to the motor, the motor is connected to the power supply, the piston rod of each hydraulic cylinder is connected to the four-section connecting rod journal of the same crankshaft, and each section of the connecting rod journal is connected to the crankshaft central shaft through a pair of cams. The four-section connecting rod journal is evenly distributed in the circumferential direction with respect to the crankshaft center axis, and the included phase angle between the two adjacent connecting rod journals is greater than or equal to 90 degrees; the front end shaft and the rear end shaft of the crankshaft are connected to the power output shaft by transmission . The control valve includes a pressure control valve, a flow control valve, and a directional control valve. The utility model has the following positive and beneficial effects:

The utility model adopts the principle of hydraulic lifting, using a hydraulic cylinder to push the piston rod up and down. During the rotation of four piston rods, the crankshaft is driven to generate power and the crankshaft rotates to output power. The lifting of each piston rod is performed by the hydraulic cylinder. The order of oil inlet and oil discharge of each hydraulic cylinder (that is, the work order of the piston rod) is realized by the control valves on the oil pump and the oil pipe. The control valves include directional control valves and flow control valves. And pressure control valves. The utility model does not need to burn fuel during the working process, does not generate high temperature and high pressure, and has no harmful gas emissions. It has a simple structure, low cost, convenient use, long life, easy maintenance, large output power, high efficiency, and energy saving. Brief Description of the Drawings Figure 1 is a schematic diagram of an embodiment of the present invention;

Fig. 2 is a schematic diagram of the operation of the hydraulic cylinder shown in Fig. 1. For an embodiment of the present invention, please refer to FIGS. 1 and 2. The environmentally-friendly hydraulic power machine of the present utility model has four hydraulic cylinders 1, 2, 3, and 4, and the bottom ends of the hydraulic cylinders are hinged to the base 5 The four hydraulic cylinders 1, 2, 3, and 4 are connected to the oil pump 10 via oil pipes 6, 7, 8, and 9, respectively. Control valves 11, respectively, are installed on the oil pipes 6, 7, 8, and 9, respectively. 12, 13, 14, The oil pump 10 is connected to the electric motor 15, the electric motor 15 is connected to the power source 16, and the piston rods 17, 18, 19, 20 of the hydraulic cylinders 1, 2, 3, 4 are connected to the four sections of the same crankshaft 21, respectively. The rod journals 22, 23, 24, and 25 are connected, and the four-stage link journals 22, 23, 24, and 25 are connected to the central axis of the crankshaft 21 through a pair of cams 26, 27, 28, and 29, respectively. The connecting rod journals 22, 23, 24, and 25 are evenly distributed in the circumferential direction with respect to the central axis of the crankshaft 21, and the spatial phase included angle between two adjacent connecting rod journals is greater than or equal to 90 degrees; the four piston rods 17, 18 In the process of lifting and lowering, 19, 20, the crankshaft 21 is pushed to rotate more than 360 degrees, and the cycle is repeated. Output power 21, a front end and a rear shaft axis of the crankshaft 21 via gears 30, 31 connected to the output shaft 32.

The control valves 11, 12, 13, and 14 include a pressure control valve, a flow control valve, and a directional control valve. These control valves and the oil pipes 6, 7, 8, and 9 together form a hydraulic control circuit to control and regulate the oil pump 10 and the oil. The direction and flow of the hydraulic pressure between the pressure cylinders 1, 2, 3, and 4 enable the hydraulic cylinders 1, 2, 3, and 4 to operate correctly in order. In a preferred embodiment, oil with a diameter of about 15 cm can be used. Hydraulic cylinder, each hydraulic cylinder can lift a weight of 15 tons, and the size of the hydraulic cylinder is proportional to the horsepower. When the power machine starts, the power source 16 (battery) drives a 48-volt motor 15, the motor 15 drives the oil pump 10, the four piston rods 17, 18, 19, and 20 of the hydraulic cylinders 1, 2, 3, and 4 move up and down to drive the crankshaft 21 The rotation generates power, the crankshaft 21 continuously rotates, and its power output shaft 32 is accelerated by an accelerator, and the output speed can reach 3000 revolutions per minute.

Claims

Claim

1. An environmentally-friendly hydraulic power machine, characterized in that it has four hydraulic cylinders, and the bottom end of each hydraulic cylinder is hinged to the base and can swing forward and backward, and each hydraulic cylinder passes through an oil pipe and an oil pump respectively The oil pipe is equipped with a control valve, the oil pump is connected to a motor, the motor is connected to a power source, and the piston rods of each hydraulic cylinder are connected to the four-section connecting rod journal of the same crankshaft. The crankshaft central axis is connected, and the four-section connecting rod journals are evenly distributed in the circumferential direction relative to the crankshaft central axis, and the spatial phase included angle between the adjacent two connecting rod journals is greater than or equal to 90 degrees; The transmission is connected to the power output shaft.

2. The environment-friendly hydraulic power machine according to claim 1, wherein the control valve comprises a pressure control valve, a flow control valve, and a directional control valve.