JPS5813327Y2 - Atsuriyokuhei Kougatashiatsuki - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a pressure-balanced acupressure device for internal combustion engines.

FIG. 1 shows a conventional pressure-balanced acupressure device.

To explain the outline, 1 is a cylinder of the internal combustion engine, 2 is a shiatsu pressure device valve, 3 is a pickup attached to the shiatsu device valve 2, 4 is a gas pressure in the cylinder 1 on the bottom surface, and a pipe from the pressure accumulator 11 on the top surface. A pressure balancing valve which receives air pressure supplied through γ, this pressure balancing valve 4 seats on the earth valve seat 5 when the gas pressure is higher than the supply air pressure and when the gas pressure is lower than the air pressure. It is seated on the valve seat 6.

Valve seat 5 is an insulator, and valve seat 6 is a conductor.

9 is a pressure gauge, 10 is a supply valve that supplies air from the pressure accumulator 11, and 8 is a pressure reducing valve that reduces the pressure inside the pipe 7.

12 is a primary circuit connected to an on/off switch when the pressure balance valve 4 is connected to and separated from the valve seat 6; 13 is a secondary circuit that generates a high voltage when the induction coil of the primary circuit 12 is energized; 14; drum 1 when high voltage occurs in the secondary circuit.
5 is a discharge recorder that generates a spark discharge and records it on a recording paper attached to a drum 15; 15 is a cylindrical drum with a recording paper attached to it and rotates in synchronization with the rotating shaft of the engine; 16 is a discharge recording needle 14 is a pantograph which is displaced along the side of the drum 15 parallel to the drum axis and in proportion to the pressure applied to the plunger; 17 is a plunger balanced by spring force and air pressure.

Next, the operation of this acupressure device will be explained.

When the pickup 3 is attached to the acupressure valve 2 of the engine cylinder 1 and pressure is applied from the pressure accumulator 11 through the pipe 7, the pressure equalization valve 4 is controlled by the supplied air pressure to the lower valve seat 6 if the gas pressure in the cylinder 1 is low. If the gas pressure in the cylinder 1 is higher than the supply air pressure, the valve seats on the upper valve seat 5.

It is considered that the cylinder gas pressure and the supply air pressure are equal at the moment when the pressure balance valve 4 seats on the valve seat 6 and the moment when it leaves the valve seat 6.

- The high voltage generator composed of the secondary circuit 12 and the secondary circuit 13 captures that moment and generates a high voltage, causing a spark discharge between the drum 15 and the discharge recording needle 14, and this spark discharge is applied to the drum 15. It is recorded as a dot on the wrapped recording paper.

The recorded points can be converted into pressure values by calibrating the relationship between the displacement of the pantograph 16 and the supply air pressure using the pressure gauge 9 in advance.
By verifying the relative relationship between the crank angle of the shunted engine and the drum 15, the crank angle can be determined.

Therefore, by gradually changing the supply air pressure in the cylinder 1 from the lowest value to the highest value, the cylinder pressure of the engine that changes periodically can be recorded on the recording paper.

However, in this conventional pressure-balanced shiatsu device,
Confirmation of whether recording is being performed normally is based on whether spark discharge occurs or not, which has the following drawbacks.

(1) When operating the air valve to increase or decrease pressure at a location away from the recording paper, it is unclear in what range the supply air pressure should be applied.

(2) In order to save measurement time, multiple pickups may be used to simultaneously record all cylinders, but it is not possible to confirm whether all cylinders are being recorded normally or which one is defective.

Therefore, the present invention aims to eliminate these drawbacks of the conventional device.The main cause of failure of this device is the high voltage generator caused by the seating and unseating of the pressure balance valve 4 and the valve seat 6 of the pickup 3. In consideration of the fact that the on/off signal to the lamp is defective, the feature is that the on/off signal is detected by the blinking of the lamp.

The details of the present invention will be explained below with reference to the embodiment shown in FIG.

3 is a pickup, 4 is a pressure balance valve, 5 and 6 are valve seats, 7
1 is an air conduit, 12 is a primary circuit of the high voltage generator, and 13 is a secondary circuit of the high voltage generator, which are the same as the conventional pressure balanced acupressure device shown in FIG.

However, the circuit inside the one-dot chain line has been added according to the present invention; 18 is a capacitor for passing the alternating current generated by the on/off signal transmitted from the pickup 3 to the primary circuit 12 of the high voltage generator; This lamp blinks due to the current passing through the capacitor 18.

That is, the present invention newly adds one capacitor in parallel between the conventional component pickup and the primary circuit of the high voltage generator.
8 and a lamp 19.

In such a device, if the cylinder gas pressure is higher than the supply air pressure, the pressure equalization valve 4 is separated from the valve seat 6;
No current flows between the pickup 3 and the primary circuit 12, the newly installed circuit is also cut off by the capacitor 18, and the lamp 19 is turned off.

However, at the moment when the gas pressure in the cylinder becomes lower than the supply air pressure, the pressure balancing valve 4 is seated on the valve seat 6, and current flows between the pickup 3 and the primary circuit 12.

Since the instantaneous current change passes through the capacitor 18, the lamp 19 blinks.

Further, if the gas pressure in the cylinder is lower than the supply air pressure, the pressure equalization valve 4 is seated on the valve seat 6, and current flows between the pickup 3 and the primary circuit 12, but the lamp 19 is blocked by the capacitor 18. I can't flow.

At the moment when the gas pressure in the cylinder becomes higher than the supply air pressure, the pressure balance valve 4 is removed from the valve seat 6, and the current between the pickup 3 and the primary circuit 12 is cut off.

At that time, the current change passes through the capacitor 18 and the lamp 19
flashes.

In this way, the on/off signal can be detected by blinking the lamp 19.

From the above, the present invention has the following effects and advantages.

(1) Since there is no need to check on/off signals using spark discharge, remote control such as air valve operation is possible.

(2) Simultaneous multi-cylinder measurement using multiple pink-ups allows the signal to be confirmed at each pickup, allowing for early detection of failures.

(3) Recording methods other than spark discharge, such as recording on a computer, can be used to confirm the signal.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conventional pressure-balanced acupressure device, and FIG. 2 is a block diagram showing the features of an embodiment of the present invention. 1... Engine cylinder, 2... Shiatsu valve, 3
...Pickup, 4...Pressure balance valve, 5...Valve seat (insulator), 6...Valve seat (conductor), T... ... Air conduit, 8 ... Pressure reducing valve, 9 ... Pressure gauge, 10 ... Air supply valve, 11 ... Air pressure accumulator, 12.・・・・・・
-Next circuit, 13...Secondary circuit, 14...
・Discharge recording needle, 15...Drum, 16...
...Pantograph, 17...Plunger, 18
...Condenser f-, 19...Lamp.

Claims (1)

[Scope of utility model registration request] In the pressure balance type acupressure device, a series circuit of a capacitor 18 and a lamp 19 is added in parallel to the primary circuit 12 of a high voltage generator connected to the pressure balance valve 4 of the pickup 3, and the blinking of the lamp 19 causes the above-mentioned A pressure-balanced acupressure device characterized by remotely checking the on/off signal of the pressure-balanced valve 4.