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An engine with a plurality of operating modes including operation by compressed air

An operating mode, engine technology, used in variable displacement engines, reciprocating piston engines, engines with one-way flow principles, etc.

Inactive Publication Date: 2008-11-05
LOTUS CARS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention solves the problem of providing an engine capable of operating with zero emissions in a different way

Method used

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  • An engine with a plurality of operating modes including operation by compressed air
  • An engine with a plurality of operating modes including operation by compressed air
  • An engine with a plurality of operating modes including operation by compressed air

Examples

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Embodiment Construction

[0013] In FIG. 1 , a piston 10 is shown reciprocating inside a cylinder 11 and with which a variable volume combustion chamber 12 is defined. Two intake valves 13 and 14 control the flow of charge air to the combustion chamber 12 . The gas flow control valve 15 controls the flow of pressurized air to and from the pressure vessel 16, as will be described later. An exhaust valve 17 controls the flow of burned gases out of the combustion chamber from an exhaust passage 18 which vents the exhaust gases to the atmosphere. Injector 33 injects fuel into the combustion chamber and also includes the spark plug.

[0014] Each of the four valves 13, 14, 15 and 17 is connected to each of the four hydraulic actuators 19, 20, 21 and 22 which are connected to each of the four electrically operated control valves 23 associated therewith. , Under the control of 24, 25, 26 the valves 13, 14, 15 and 17 are opened and closed. Each control valve 23, 24, 25, 26 is also connected to a source 27 o...

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Abstract

The present invention relates (with reference to Figure 1) to an internal combustion engine in which a combustion chamber (12) can be connected to a reservoir (16) for storing compressed air. Gas flow control valve means (15) controls flow between the chamber (12) and reservoir (16) so that air pressurised in the chamber (12) can be relayed to charge the reservoir (16) and pressurised air can be delivered to the chamber (12) to drive piston (10). The chamber (12) is also used for combustion of fuel. The invention also relates to a valve mechanism for controlling the flow of pressurised air between the chamber (12) and reservoir (16), in which a balancing force is applied to the gas flow control valve (115) to cancel the force on the valve (115) arising from the pressure applied to the back face of the valve (115).

Description

technical field [0001] The invention relates to an engine which can be operated as an internal combustion engine, which can be operated as a compressor generating compressed air, and which can also be started using stored previously generated compressed air. Background of the invention [0002] There has been considerable research on vehicles with engines that are zero-emission in certain operating conditions, such as in urban traffic. Much research has focused on the combined use of internal combustion engines and electric motors, where the internal combustion engine is used out of town to generate electricity that is stored to later start the electric motor during in-town use of the vehicle. When the motor is running alone, there are zero emissions. [0003] US2001 / 0002379 discloses an internal combustion engine having a valve system with valve timing and valve disconnection. The internal combustion engine can be operated as a four-stroke engine or a two-stroke engine. ...

Claims

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Application Information

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IPC IPC(8): F02B75/00F01B17/02F02D17/02F02B21/00F02D9/04F02D13/02F02D13/04F02M25/07
CPCF02M25/0752F02M25/0706F02D9/04F02D13/0276F02D17/023F02D13/04F02B21/00F02D13/0203F02B75/00Y02T10/121F01B17/02F02D13/0253F02M26/04F02M26/01Y02T10/12
Inventor J·W·G·特纳杰弗里·阿伦
Owner LOTUS CARS
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