JPS60187341U - Engine idle speed control device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an embodiment of the device according to the present invention; Fig. 2 is a sectional view showing the structure of the flow rate regulating device shown in Figs. Figure 4 is a configuration diagram of an engine equipped with the conventional device, Figure 5 is a vertical cross-sectional view of the idle speed control device, and Figure 6 is a diagram showing the line ■-■ in Figure 5. A cross-sectional view along FIG. 7 is IV-I of FIG.
An enlarged view of the stopper seen from the V line, A in Fig. 8 is a plan view of the electric heating fin shown in Fig. 5, B in Fig. 8 is also a front view, and Fig. 91 is for explaining the operation of the coil and magnet. Figure 10 is a water line diagram showing the relationship between coil current and valve body rotation angle, Figure 11 is a line diagram showing the relationship between coil current and air flow rate, and Figure 12 is a line diagram showing the relationship between coil current and air flow rate. Bimetal temperature -14 (!: A diagram showing the relationship between the bimetallic temperature and the rotation angle of the pimetite, Figure 1-3 is a diagram showing the relationship between the bimetal temperature and the valve opening degree, and Figure 1-4 is a diagram showing the relationship between the bimetal temperature and the valve opening degree. A line drawing showing the relationship between engine water temperature and target idle speed -, - rotation speed, Fig. 15. G-1 A line drawing showing the relationship between engine water temperature and air flow rate when intake air leakage is large.
The figure is a diagram showing the relationship between engine water temperature and intake flow rate when intake air leakage is small. - 50...Bypass intake passage, 58...Rotary solenoid -1.74...Temperature-sensitive drive unit, 82...
Bimetal, 1 -00.124... Bypass intake passage, 104- Bi " --- Pass flow control valve, 1
02...Flow rate adjustment device, 114...Flow rate adjustment screw. −ゝf06 −, −Fig. 5−− −Fig. 9 °−

Claims (1)

[Scope of Claim for Utility Model Registration] A valve body that is inserted into a via tin intake passage that bypasses an intake throttle valve in an engine intake system and changes the amount of air passing through the bypass intake passage; a temperature-sensitive drive unit that drives the valve body in a direction that reduces the amount of air passing through the intake passage and regulates the opening degree of the valve body to an opening degree that corresponds to the ambient temperature;
- A predetermined opening that exceeds the opening of the valve body regulated by - the drive of the temperature-sensitive drive unit. - A bypass intake amount side control valve having an energization drive part that drives a valve body according to the amount of energization in -, A control device that applies an amount of current to the energizing drive unit to maintain the engine speed at a target rotation speed, and a bypass intake passage or valve body that bypasses the intake throttle valve in a route different from the bypass intake passage in which the valve body is inserted. 1. A flow rate adjustment device for adjusting the amount of air passing through one of the bypass intake passages bypassing the bypass intake passage.
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