Gaseous ignition system for internal combustion engine

• US 3,958,538 A
• Filed: 03/03/1975
• Issued: 05/25/1976
• Est. Priority Date: 05/15/1972
• Status: Expired due to Term

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Hoshino, Yasunari
• Primary Examiner(s): Croyle, Carlton R.
• Assistant Examiner(s): Koczo, Jr., Michael
• Application Number:
  US05/554,551
• Time in Patent Office: 449 Days
• Field of Search: 60/39.82 C, 60/39.82 P, 123/8.09, 123/8.13, 123/1 A, 123/39, 123/119 E, 123/143 R, 123/143 B, 123/DIG. 9, 239/453, 239/533
• US Class Current: 123/209
• CPC Class Codes: F02B 1/04 with fuel-air mixture admission into cylinder
• CPC Class Codes: F02B 2053/005 Wankel engines
• CPC Class Codes: F02B 43/10 Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
• CPC Class Codes: F02B 53/12 Ignition
• CPC Class Codes: F02B 55/14 Shapes or constructions of combustion chambers
• CPC Class Codes: F02M 2700/34 Measures, also constructive measures, for avoiding the generation of nixious products such as CO in the exhaust gases
• CPC Class Codes: F02M 43/04 Injectors peculiar thereto
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies
• CPC Class Codes: Y02T 10/30 Use of alternative fuels, e.g. biofuels
• CPC Class Codes: Y10S 123/09 Flame ignition

Abstract

An internal combustion engine comprising a gaseous ignition system which employs a high temperature and high pressure gaseous mixture obtained by decomposing hydrogen peroxide.

Claims

1. In combination with a trochoidal type rotary piston internal combustion engine in which a multi-lobed rotor is mounted for rotational movement within a housing having a basically epitrochoidal profile to form a main combustion chamber and which is operated on a combustible charge supplied to the combustion chamber,

a gaseous ignition system comprising:

an auxiliary chamber communicating with the main combustion chamber through an ignition aperture; and

an injector nozzle having an injector body including a valve chamber communicating with a fuel source under pressure in timed relation with engine revolution of the engine and a valve seat connecting the valve chamber, through a discharge channel, with the auxiliary chamber, the valve seat being formed with a port therein which communicates with a hydrogen peroxide source under pressure, and having an injection control valve means yieldably biasing said injection control valve in one direction toward a valve closing position to engage the valve seat to close the port and to block communication between the valve chamber and the auxiliary chamber, the injection control valve having an area exposed to fluid pressure in said valve chamber to be urged in the opposite direction toward a valve opening position against yieldably biasing force.

2. A trochoical type rotary piston internal combustion engine as claimed in claim 1, further in combination therewith of:

a glow plug exposed to the interior of the auxiliary chamber.

3. In combination with a trochoidal type rotary piston internal combustion engine in which a multi-lobed rotor is mounted for rotational movement within a housing having a basically epitrochoidal profile to form a main combustion chamber and which is operated on combustible charge supplied to the main combustion chamber;

a gaseous ignition system comprising;

an auxiliary combustion chamber communicating with the main combustion chamber through an ignition aperture; and

an injector nozzle having an injector body including a valve chamber communicating with a fuel source under pressure in timed relation with engine revolution of the engine and a valve seat connecting the valve chamber with the auxiliary chamber, the valve seat being formed with a port therein which communicates with a hydrogen peroxide source under pressure in timed relation with engine revolution with the engine, and having an injection control valve, means yieldably biasing said injection control valve in one direction toward a valve closing position to engage the valve seat to close the port and to block communication between the valve chamber and the auxiliary chamber, the injection control valve having a first area exposed to fluid pressure in the port and a second area exposed to fluid pressure in the valve chamber to be urged in the opposite direction toward opening position against yieldably biasing force.

4. A trochoidal type rotary piston internal combustion engine as claimed in claim 3, further in combination therewith of:

a glow plug exposed to the interior of the auxiliary chamber.