SU1495489A1 - Electric starting system for ic-engine - Google Patents

Abstract

The invention relates to starting devices of internal combustion engines and can be used on mobile and stationary installations with electrical power systems of limited power. The invention makes it possible to improve the operation mode of a battery by limiting the amount of current delivered to it, as well as to increase the reliability of the start by preventing the starter from turning on when the capacitor battery is low. The system contains a battery 1, a capacitor battery 2, a starter 3, a switching unit 4 having closing contacts 5 and 6, as well as opening contacts 7 and 8, a starter switch 9, an additional relay with winding 10 and opening contact 11. Before starting the engine the capacitor battery 2 is charged by the battery 1 through the winding 10 of the auxiliary relay, which allows to limit the magnitude of the discharge current of the battery 1. At the time of charge of the capacitor battery 2, the additional relay 10 operates and opens the contact 11. This prevents the starter from starting up when the capacitor battery is depleted. 1 il.

Description

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The invention relates to starting devices of internal combustion engines and may be used in mobile and stationary installations with limited power electrical power systems.

The purpose of the invention is to improve the operation mode of a battery by limiting the amount of current delivered to it, as well as to increase the starting reliability by preventing the starter from turning on when the capacitor battery is depleted.

The drawing shows an electrical diagram of an electric starter system.

To start the engine, the starter switch 9 is closed and the switching unit 4 is activated. Pins 7 and 8 of switching unit 4 are opened, and contacts 5 and 6 are closed.

5 In this case, the starter 3 is connected to the series-connected battery i and the capacitor battery 2 and rotates the internal combustion engine. Limiting the magnitude of the discharge current

10 battery battery makes it possible to reduce its capacity and, consequently, its overall dimensions. In addition, the pre-storage of the battery from the short-circuit current arising in

The system contains an accumulator battery connected to it by a discharged contact 1, a capacitor battery 2, starter 3, a switching unit 4 having closing contacts 5 and 6, as well as disconnecting contacts 7 and 8, a starter switch 9, connected to the power supply circuit unit 4 switching. At the same time, the positive and negative terminals of the battery 1, respectively, are connected via the first: the switching contact 5 and the first disconnecting contact 8 of the switching unit 4 are connected to the negative terminal of the capacitor battery 2, and the positive output of the capacitor battery 2 through the second closing contact b switching unit 4 is connected to starter 3. The system also contains an additional relay 10 with a winding and disconnecting contact 11, and the winding of an additional relay 10 through the second disconnecting contact 7 of switching unit 4 between the positive terminal of the secondary battery 1 and the capacitor bank 2.

The system works as follows.

Before the engine is started, the capacitor battery 2 is charged by the battery 1 through the winding of the auxiliary relay 10 and the closed contacts 7 and 8 of the switching unit 4. In this case, the winding of the additional relay 10 acts as a resistance, limiting the magnitude of the discharge current of the battery 1. At the time of charging the capacitor battery 2, the additional relay 10 operates and opens the contacts 11. This prevents the voltage from being supplied to the switching unit 4 by starter 3 is turned on for the time of charge of the capacitor battery 2. When the charge current of the capacitor battery 2 decreases to a value equal to the release current of the additional relay 10, the contacts 11 are closed and the system avlivaets to work in the engine start mode.

The sensor battery allows to increase its service life.

Preventing the system from starting in the engine start mode when the capacitor battery is depleted allows you to eliminate the energy losses that may occur when the starter is turned on for lower supply voltage, and to increase the reliability of the start.

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Claims (1)

Invention Formula The electric starter system for internal combustion engines, containing a battery, a capacitor 30 battery, starter, switching unit, having closing and opening contacts, starter switch included in the switching unit power supply circuit, with positive and negative battery terminals respectively 35, the first closing and first opening contacts of the switching unit are connected to the negative terminal of the capacitor battery, and the positive terminal of the capacitor battery via the second closing terminal The 40 contact of the switching unit is connected to the starter, distinguishing {and so that, in order to improve the operating mode of the battery by limiting the amount of current delivered to it, increasing the reliability of the start by preventing the starter from turning on when the capacitor battery is depleted, the winding and the closing contact, and the winding of the additional relay through the second disconnecting contact block The switching power supply is connected between the positive terminals of the battery and the capacitor battery, and the break contact of the auxiliary relay is switched between 45 1 starter starter and switching unit. Make up. Yu Bogachev Editor N. TupitsaTehred I. VeresKorrektor M. Vasilyeva Order 4229 / 31Tipage 482Subscription VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and publishing combine “Patent, Uzhgorod, ul. Gagarin, 101 To start the engine, the starter switch 9 is closed and the switching unit 4 is activated. Pins 7 and 8 of switching unit 4 are opened, and contacts 5 and 6 are closed. In doing so, the starter 3 is connected to the series-connected battery i and the capacitor battery 2 and rotates the internal combustion engine. Limiting the magnitude of the discharge current 0 battery batteries makes it possible to reduce its capacity and, consequently, its overall dimensions. In addition, protection of the battery from the short-circuit current arising in the moment of connection to it of a discharged capacitor battery, allows to increase its service life. Preventing the system from starting in the engine start mode when the capacitor battery is depleted allows you to eliminate the energy losses that may occur when the starter is turned on for lower supply voltage, and to increase the reliability of the start. 25 Invention Formula The electric starter system for internal combustion engines, containing a battery, a capacitor 0 battery, starter, switching unit, having closing and opening contacts, starter switch included in the switching unit power supply circuit, with positive and negative battery terminals respectively 5, the first closing and first disconnecting contacts of the switching unit are connected to the negative terminal of the capacitor battery, and the positive terminal of the capacitor battery via the second closing terminal 0 contact of the switching unit is connected to the starter, distinguishing {and so that, in order to improve the operating mode of the battery by limiting the amount of current delivered to it, increasing the reliability of the start by preventing the starter from turning on when the capacitor battery is depleted, the winding and the closing contact, and the winding of the additional relay through the second disconnecting contact block the switching is connected between the positive terminals of the battery and the capacitor battery, and the disconnecting contact of the auxiliary relay is switched on between the 5