Toyota Avalon 2006 Crank Sensor Location

Front

Evaporator

Heater Core

Front

Evaporator

Feuerwehrmann Sam Ausmalbilder
Heater Core

8. EVAPORATOR

(a) A revolutionary super-slim structure evaporator is used. Placing the tanks at the top and the bottom of the evaporator and adopting a micropore tube construction have realized the following effects:

, Cooling Fin

Tank

, Cooling Fin

Tank

Micropore Tube

Tank

Y I046152E01

• The hear exchanging efficiency is improved.

• the temperature distribution is made more uniform.

• The evaporator is mode thinner. 58 mm (2.3 in.) ^ 38 mm (1.5 in.)

HEATER CORE

(a) A compact, lightweight, and highly efficient straight flow (full-path flow) aluminum heater core is used. BLOWER MOTOR

(a) The blower motor has an in-built blower controller, and is controlled with the duty control from the Air Conditioning ECU.

11. BUS CONNECTOR

(a) ABUS connector is used in the wire harness connection that connects the servomotor the Air Conditioning ECU.

BUS Connector

BUS Connector

To Air Mix Servomotor (For Driver)

To Air Inlet Servomotor

To Air Inlet Servomotor

BUS Connector ■ To Air Outlet Servomotor

Evaporator Temp. Sensor

BUS Connector To Air Mix Servomotor (For Front Passenger)

The BUS connector has an in built communication / drive IC which communicates with each servomotor connector, actuates the servomotor, and position detection function. This enables bus communication for the for the servo motor wire harness, for a more lightweight construction and a reduced number of wires.

12. SERVO MOTOR

(a) The pulse pattern type servomotor consists of a printed circuit board and servomotor. The printed circuit board has three contact points, phase. The smart connector detects the damper position and movement direction with this signal.

Air Mix Servomotor

13. CLEAN AIR FILTER

(a) A clean air filter (micro dust and pollen filter) is used. this filter excels in the removal of dust and pollen. The filter made be disposed of easily as a combustible material, a feature that is provided in consideration of the environment.

14. CONDENSER

(a) The condenser consisting of two cooling portions: a condensing portion and a super-cooling portion, and gas-liquid separator (modulator) all integrated together. this condenser uses a sub-cool cycle that offers excellent heat-exchange performance.

Gaseous Refrigerant

Liquid Refrigerant

Gaseous Refrigerant

Liquid Refrigerant

Modulator

Super-Cooling Portion

• In the sub-cycle, after the refrigerant passes through the condensing portion of the condenser both the liquid refrigerant and the gaseous refrigerant that could not be liquefied are cooled again in the super-cooling portion. thus, the refrigerant is sent to the evaporator in an almost completely liquefied state.

15. A/C COMPRESSOR

(a) A/C compressor is continuously variable capacity type in which its capacity varies in accordance with the cooling load of the air conditioning. (1) This compressor consists of the shaft, lug plate, piston, shoe, crank, chamber, cylinder, and solenoid control valve.

(2) A solenoid control valve that adjusts the suction pressure so that the suction pressure can be controlled as desired is provided.

Crank Chamber Shoe

Shaft

Piston yvwvw\ Lug Plate

Crank Chamber Shoe

Piston

yvwvw\ Lug Plate

Cylinder

Cylinder

Piston

-Solenoid Control Valve

(3) The crank chamber is connected to the suction passage. A solenoid control valve is provided between the suction passage (LO pressure) and the discharge passage (HI pressure).

(4) The solenoid control valve operates under duty cycle control in accordance with the signals from A/C ECU.

Lug Toyota Avalon
Y I046160E03

(5) When the solenoid control valve closes (solenoid coil is energized), a difference in pressure is created and the pressure in the crank chamber decreases. Then, the pressure that is applied to the right side of the piston becomes greater than the pressure that is applied to the left side of the piston. this compresses the spring and tilts the lug plate. As a result, the piston stroke increases and the discharge capacity increases.

Crank Chamder Pressure + Spring Force

Suction

A/C ECU

Discharge

Discharge -Pressure

Discharge

Discharge -Pressure

Piston Stroke: Large l

Solenoid Control Valve

(6) When the solenoid control valve opens (solenoid coil is not energized), the difference in pressure disappears. Then, the pressure that is applied to the right side of the piston. Thus, the spring elongates and eliminates the tilt of the lug plate. As a result, there is no piston stroke and the discharge capacity turns to decrease.

Crank Chamber Pressure + Spring Force

Suction

A/C ECU

Suction Pressure

Discharge

Piston Stroke: Small

Suction Pressure

Discharge Pressure n

Solenoid Control Valve

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Responses

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