Automobile ac variable charge compressor structure
Content description: traditional compressor voltage is fixed and many new air-conditioning systems now use variable exhaust compression
The machine. During the operation of the air conditioning system, changes in compressor exhausts can change the amount of refrigeration。
The sedan air-conditioning compressor is driven by a straight-link engine and evaporates the car air-conditioning system for the stationary compressor
Wind temperature to control compressor emulsor adsorption or separation, intermittent operation to control system cooling capacity and inner space
Reload appropriate. In addition to the highly volatile air-conditioning temperature in the vehicle, this method of control is irreversibly damaged by the frequent running of the system. Jean. Yes
In addition to shortcomings such as increased aggregate energy consumption, the biggest problem is the cyclical disconnection of compressors to motor engines
This is even more pronounced when motor capacity is small. In order to solve this problem, the transformer compressor should be transported
Fan。
The so-called variable charge compressor, the structure of which is based on a roller-on-board or roller-board compressor, a traditional tilt or panel
In a compressor, the tilt or roller angle is fixed, i. E. The maximum trip of the piston is fixed. And upgraded to
After a variable charge compressor, adjust the angle of the tilt or rockboard, thereby adjusting the maximum trip of the piston and changing the platoon of the compressor
Gas。
The installation of electromagnetic ionifiers at the front end of the compressor control compressor breaks is required as opposed to the traditional flat charge compressor system
Work to regulate refrigeration. The variable exhaust compressor removes the electromagnetic ionifier and regulates the piston process in a non-grade sequence
Regulate cooling
Trielectric variable charge compressor
There are two ways to control variable chargers: one is mechanical
Regulate valves, the charge of the modified compressor adapted to the pipe pressure of the air conditioner; the other is the chargeable variable charge, in the original machine
An electromagnetic control valve was added to the device control valve, and the air conditioner control unit received a letter from the evaporation unit's wind temperature sensor
No. No., no-level adjustments to compressor power。
Variable charge compressor structure
Note three pressures: one is a compressor inhaled low pressure refrigerant; the other is a compressor ejected high suppressant refrigerant
The third is the pressure of the curvature box in which the wheel or board is located; the pressure in this curvature box is essentially greater than or equal to the compressor
Inhalation pressure, much smaller than the exhaust pressure of the compressor。
The control valve is used to regulate the pressure in the axle box, which is located in the compressor when the pressure is equal to the inhaling pressure of the compressor
Maximum voltage; when the pressure of the control curve axis is higher than the inhalation pressure, the angle of the tilt or plate is reduced and the charge of the compressor is reduced。
Figure on the working principles of the variable charge compressor
The control valve consists of mechanical components and electromagnetic units. Mechanical elements rely on a controlled pressure relationship on a low pressure side
Pressure sensitive elements in low pressure areas of valves to control the adjustment process. Emps are operated and displayed through 500 hz
Break frequency is controlled。
The electromechanical voltage compressor, in a state without currents, adjusts the valves, the pressurized cavity of the compressor and the compressor music
The axis are connected and the pressure of the high pressure cavity and the pressure of the curved axis is balanced. When full, valves are closed, warpcases and high pressure. Magnificent
The passages between them are severed, the pressure of the warp axis is down, the tilt angle of the tilt disk is increased to 100% of the charge; it's off
When the amount of cooling is fixed or required is low, the valve opens, the channel between the warp shaft and the high-pressure cavity is opened, and the tilt angle of the tilt disk is open
Reduce to less than 2%. When the system's low pressure is high, the vacuum membrane box is compressed, the valve pole is released and continues
It moves down, further isolating the high-pressure cavity and curvature axis, resulting in a 100 per cent charge for compressors. When the system sucks
When the pressure is particularly low, the pressure element is released, which limits the smoothing process, which means high pressure cavity and arcs
The box can no longer be completely separated, thus reducing the charge of the compressor。
The new structural belt wheel mixer, and the electro-regulating transmutation compressor introduced the new structural belt wheel. Leather plate by belt wheel and
Consisting with the wheel, which is strongly connected by a rubber element. When the compressor dies as a result of damage to it
The transmission power of rubber elements increased dramatically along the wheel and belts, which squeezed rubber elements to the card in the rotational direction
On the side wheel of death, the rubber element is deformed, the pressure on the side wheel increases, and the side wheel produces deformation until along
Disconnection between the wheel and the belt wheel avoided damage to the belt movement。
The deformity of the wheel depends on the temperature of the rubber element, which is flexible depending on the temperature of the structure. Because of the oak
The shape of the rubber element and the side wheel avoided damage to motor belts while preventing damage such as pumps and generators
It's bad. It's a dynamic overload。
Advantages of voltage compressors for electrical regulation: compressors are running, no coupling of shocks, increasing comfort; through
The temperature of the evaporation unit is perfect for cooling and heat loads and energy consumption, reducing the reheating process and creating wind vents
Temperature, humidity constant adjustment; loss of electromagnetic coils and reduction of belt wheels as charge can be reduced to nearly 0%
Volume reduces quality by 20 per cent (about 500-800g); compressor power consumption decreases and fuel consumption decreases; new structure skins
The wheel was used to transfer power between belts and air-conditioning compressors, eliminating twisting fluctuations and simultaneously overloading protection
With。
In 1960, p. B. Loomis, an american, applied for a patent for the vagaries. More than 20 years later, harrison, the united states company gm
The radiator department (now delphi automotivesystems) developed its first classless charge in 1983
Volkswagen compressor - v5 transformer compressor, used in august 1985 in advanced cars
It has five cylinders. It's a swinging slant structure, with a two-way spherical pole connected to the piston
This component consists mainly of axle and drive crumb parts, slider axes, rotation axis necks, and conversion of axle rotation motion into a piston straight line
Sports rockboards, etc. The internal control valve is in the back of the compressor and consists mainly of cone valves and ball valves; the cone valve controls the panel box
The passage between the inhaler cavity (bone tube chamber), the valve control the vent and the panel, and the cone and ball valve pass
The valves are linked, thus making the openings of the two valves complementary; the exhaust pressure affects the change in the fixed value of the control valve, and is sustained
Increased exhaust pressure, lower set value; inhalation pressure compared to set value, driving control of valve movement, changing cone valves and
The opening of the ball valve changes the flow resistance between the pallet and the vent and between the pallet and the inhaler
The pressure is different from the inhalation pressure, which drives the shift in the tilt of the tilt disk, thereby altering the compression mechanism piston process
Change the charge of the compressor. See v5 variant compressor changes the cooling of the air conditioning system based on changes in the load inside the vehicle
Changed the traditional mode of adjusting the clutch switcher and made the system work smoothly and continuously, without causing motors
Periodical load changes. However, its air-conditioning system still retains an electromagnetic ionifier, which is separated when the car air-conditioning system ceases to function
The separation of the device can disable the compressor so that the compressor functions in part. Maximum voltage of v5 variant compressor
For 156 cm3, the minimum charge is 10 cm, or 6 per cent of the maximum charge。
In 1985, sanden japan began developing a rockboard variant compressor. Figure 3 presents the company's sdv710 change
Folder compressor structure, based on the variable charge principle based on the technically mature setr compressor sd7 series
Made. Simplified vase angles and rockboard anti-rotation structures compared to v5 and the structure of internal control valves
And the principles of control are different. The exhausts improve the lows through the flow trachea from the vent to the rockboard. Line
The action reaction of the control valve in quantity. Internal control valves are installed at the centre of the valve plate (see figure 4), and bellow stretching is shaken
Cylinder pressure control, control valve switches subject to bellows (i. E., rockboard pressure pc), exhaust pressure pd, and inhalation pressure
Control of ps co-effects. An exhaust pressure pusher can regulate the valve pressure of the bellow valve, which can compensate for the negative
An increase in evaporation temperature caused by an increase in pressure from a charge-time compressor inhalation pipe keeps the evaporation temperature at a suitable temperature。
The maximum charge of the sdv710 wave compressor is 161 cm-3 with a rockboard angle of 1. 5° to 24°, allowing the charge to range from 6% to 100%
Change。
In addition, other companies, such as the japan diesel machines company, also produce transformer pallet compressors。
The japanese electric assembly company developed into a 10-p-v two-stage transformer of 10 cylinders in 1983
On both sides of the slash, the two-action pattern. It connects the vent with the inhaler by opening the exhaust valve in the back tank
So 50% of the cylinder is offloaded. The machine can achieve 50% of the payload to start and 30% energy efficiency at high speed. 1983
Started in the toyota sedan after august。
Denso has developed a 7sb16 slash-board variant compressor, the structure of which is shown in figure 5. This compressor is only one
Side-to-side gas cylinders are single-acting. Loading back-slipboards on the main axle. When the main axle rotates, back-slipboards, through the slide
Pushing piston-back movement. The variable charge principle, like the rockboard, still uses the tilt box pressure and inhalation pressure
The power differentials drive a shift in the slopes of the slopes, thereby altering the pistons of the compressor and changing the charge of the compressor. Internal
The control valve structure is similar to the v5 variant compressor。
Update on variable charge compressor
Cvc compressor
The cvc compressor was delphi automotive systems for the last two years
A new generation of variable charge compressors is now produced by manufacturers in france, hungary, japan, the united states and brazil
The families are opel, nisan, bmw, volkswagen, renault, etc。
Figure 6 this compressor is also a single-actor mode, and it's the same thing as a rockboard. Change
A charge compressor, an internal control valve structure similar to the v5 variable charge compressor. The compressor uses the slurry of the oscillator, which is a simple exercise
The air vent was optimized with low noise fusions and reduced vibrations and noise. Because of compressor performance and control
To improve, the cvc compressor is 15% faster than the original variable charge compressor, with a maximum continuous rate of 8,000 r/min
The maximum speed of a short time can be 9,200 r/min. The structure is compact and has the highest current compressor mass and unit body
The volume of exhausts offers greater potential for use by users of increasingly compact cars. Alleged delphi automotive
Systems in the united states in recent years has replaced v5, v6, v7 shakeboard variant compressors with cvc compressors。
There are currently 4 specifications of cvc 125, cvc 135, cvc 165 and cvc 185
The medium vcv125 and cvc135 are 6 cylinders cvc165 and cvc185 are 7 cylinders with a minimum charge of 7cm3
External control variable charge compressor
The world's first external control variable charge compressor 6se12 was created at denso in 1999. 6se12 compressor
Based on the traditional internal control slasher, 7sb16 is the mono-action slash compressor (see figure 7). It does
Use external control valves (see figure 8) to control the load of compressors by external telecommunications. Internal control charge compressors are in use
The control valve keeps the inhaling pressure at a low constant temperature (generally at 0°c evaporation temperature), often reheated
This is done by increasing the temperature of wind delivery to maintain comfort within the vehicle. And the external control vac system is based on ambient temperature
Parameters such as degrees, engine rotation, solar radiation intensity, internal temperature, wind delivery temperature, wind delivery flow and air conditioning mode setting
Car boards or computers determine the control signal, and external (em) control valves control the compressor
Flows (see figure 9), so that a suitable inhaling pressure can be determined based on the cold load at the time, and no further heat is required
The goal of energy conservation is therefore achieved。
This type of machine can minimize the amount of charge to zero, so there is no need for an electromagnetic ionizer to turn on and stop the system, so it is adopted
New types of restraining band wheels with simple structures replaced the original electromagnetic ionator belt wheel (figure 7), removing the original electromagnetic
The coil reduces the weight of the compressor. But whether the car air conditioning system is on or off, the compressor always follows the engine
It's running. It's running on a continuous basis. In response to this situation, the compressor improved the axle seal structure and materials so that
This compressor has the same service life for all axes and traditional variable charge compressors operating continuously。
