Preheating installation for air-compressing and auto-igniting injection internal combustion engine

Claim 2

An installation for preheating combustion air in a combustion engine using poorly ignitable fuels comprising intake air means mounted between separate cylinder row banks of an engine for distributing combustion air to said separate cylinder row banks of the engine, said intake air means having an inlet opening to pass combustion air into said intake air means, and said intake air means having at least two arms with an opening at the ends of each of said arms connected to said separate cylinder row banks of said engine, said intake air opening being arranged between said at least two arms, and said intake opening being centrally positioned between said separate cylinder row blanks, preheating means mounted on said intake air means substantially opposite said inlet air opening for producing a heating flame to preheat said combustion air, and protective means for shielding said heating flame, said protective means arranged in said intake air means such that said combustion air entering into said intake air means through said inlet opening is deflected by said protection means into respective ones of said at least two arms connected to said separate cylinder row banks, wherein said preheating means comprises a structural unit including a fuel injection nozzle, a spark plug and cover means for partially covering said nozzle and spark plug, said structural unit being inserted into a wall of said intake air means substantially opposite said central inlet opening such that said cover means is flush with said wall.

Claim 3

An installation according to claim 1, wherein said separate cylinder row banks include two banks.

Claim 4

An installation according to claim 1, wherein said cylinder row banks are disposed in a V-arrangement.

Claim 5

An installation according to claim 1, wherein said protective means are formed of a sheet metal member shaped to deflect said combustion air entering into said intake air means.

Claim 6

An installation according to claim 4, wherein said sheet metal member is provided with a bend along a central direction, thereby forming a V-shape member with longitudinally extending sides.

Claim 7

An installation according to claim 5, wherein said bend has an apex facing said inlet opening.

Claim 8

An installation for preheating combustion air in a combustion engine using poorly ignitable fuels comprising intake air means mounted between separate cylinder row banks of an engine for distributing combustion air to said separate cylinder row banks of the engine, said intake air means having an inlet opening to pass combustion air into said intake air means, and said intake air means having at least two arms with an opening at the ends of each of said arms connected to said separate cylinder row banks of said engine, said intake air opening being arranged between said at least two arms, and said inlet opening being centrally positioned between said separate cylinder row banks, preheating means mounted on said intake air means substantially opposite said inlet air opening for producing a heating flame to preheat said combustion air, said preheating means comprising a structural unit including a fuel injection nozzle, a spark plug and cover means for partially covering said nozzle and spark plug, said structural unit adapted to be inserted into a wall of said intake air means substantially opposite said central inlet opening, and protective means for shielding said heating flame, said protective means arranged in said intake air means such that said combustion air entering into said intake air means through said inlet opening is deflected by said protection means into respective ones of said at least two arms connected to said separate cylinder row banks, said protective means being formed of a sheet metal member provided with a bend along a central direction, thereby forming a V-shaped member with longitudinally extending sides, to deflect said combustion air entering into said intake air means, said bend having an apex facing said inlet opening, wherein said V-shape member is closed at each open end face by a web, whereby said webs at each open end face prevents turbulence of said combustion air between said preheating means and said protective means.

Claim 9

An installation for preheating combustion air in a combustion engine using poorly ignitable fuels comprising intake air means mounted between separate cylinder row banks of an engine for distributing combustion air to said separate cylinder row banks of the engine, said intake air means having an inlet opening to pass combustion air into said intake air means, and said intake air means having at least two arms with an opening at the ends of each of said arms connected to said separate cylinder row banks of said engine, said intake air opening being arranged between said at least two arms, and said inlet opening being centrally positioned between said separate cylinder row banks, preheating means mounted on said intake air means substantially opposite said inlet air opening for producing a heating flame to preheat said combustion air, said preheating means comprising a structural unit including a fuel injection nozzle, a spark plug and cover means for partially covering said nozzle and spark plug, said structural unit adapted to be inserted into a wall of said intake air means substantially opposite said central inlet opening, and protective means for shielding said heating flame, said protective means arranged in said intake air means such that said combustion air entering into said intake air means through said inlet opening is deflected by said protection means into respective ones of said at least two arms connected to said separate cylinder row banks, said protective means being formed of a sheet metal member provided with a bend along a central direction, thereby forming a V-shaped member with longitudinally extending sides, to deflect said combustion air entering into said intake air means, said bend having an apex facing said inlet opening, wherein said V-shape member is closed at each open end face by a web, whereby said webs at each open end face prevents turbulence of said combustion air between said preheating means and said protective means.

Claim 10

An installation according to claim 7, wherein the web at one open end face is provided with means for spacing said web from said inlet air means.

Claim 11

An installation according to claim 8, wherein a plurality of openings are provided along said bend of said sheet metal member, said openings formed by pressed-out portions of said sheet metal member, and wherein two slot means, each disposed adjacent one another and extending parallel to said bend, are formed in said sheet metal member and disposed on opposite sides of said bend, whereby formation of soot is prevented on said preheating means by said plurality of openings and said slots.

Claim 12

An installation according to claim 9, wherein a further slot is arranged at said bend adjacent to said plurality of openings.

Claim 13

An installation for preheating combustion air in a combustion engine using poorly ignitable fuels comprising intake air means for distributing combustion air to separate cylinder row banks of the engine, said intake air means having an inlet opening to pass combustion air into said intake air means and at least two arms with an opening at the ends of each of said arms connected to said separate cylinder row banks of said engine, said intake air opening being arranged centrally between said at least two arms, preheating means mounted on said intake air means substantially opposite said inlet air opening for producing a heating flame to preheat said combustion air, wherein said preheating means comprises a structural unit including a fuel injection nozzle, a spark plug and cover means for partially covering said nozzle and spark plug, said structural unit adapted to be inserted into a wall of said intake air means substantially opposite said central inlet opening, and protective means for shielding said heating flame, said protective means arranged in said intake air means such that said combustion air entering into said intake air means through said inlet opening is deflected by said protection means into respective ones of said at least two arms connected to said separate cylinder row banks, wherein said cover means is a pill box-shaped member including a cover and a collar on said cover projecting toward said protective means, said collar including an opening for said fuel injection nozzle.

Claim 14

An installation for preheating combustion air in a combustion engine using poorly ignitable fuels comprising intake air means for distributing combustion air to separate cylinder row banks of the engine, said intake air means having an inlet opening to pass combustion air into said intake air means and at least two arms with an opening at the ends of each of said arms connected to said separate cylinder row banks of said engine, said intake air opening being arranged centrally between said at least two arms, preheating means mounted on said intake air means substantially opposite said inlet air opening for producing a heating flame to preheat said combustion air, wherein said preheating means comprises a structural unit including a fuel injection nozzle, a spark plug and cover means for partially covering said nozzle and spark plug, said structural unit adapted to be inserted into a wall of said intake air means substantially opposite said central inlet opening, and protective means for shielding said heating flame, said protective means arranged in said intake air means such that said combustion air entering into said intake air means through said inlet opening is deflected by said protection means into respective ones of said at least two arms connected to said separate cylinder row banks, wherein said cover means is a pill box-shaped member including a cover and a collar on said cover projecting toward said protective means, said collar including an opening for said fuel injection nozzle.

Claim 15

An installation according to claim 11, wherein said preheating means is inserted into said wall of said intake air means such that said cover is flush with said wall.

Claim 16

An installation according to claim 7, wherein said protective means is arranged in said intake air means such that an air gap is formed between said intake air means and each web of said protective means.

Claim 17

An installation according to claim 1, wherein said combustion air is fed into said inlet opening from a supercharger.

Claim 18

An installation according to claim 14, wherein a heat exchanger is connected between said supercharger and said inlet opening.

Claim 19

An installation according to claim 1, wherein said combustion engine is an air-compressing, auto-igniting injection internal combustion engine using gasoline as the poorly ignitable fuel.

Claim 20

An installation according to claim 11, wherein said protective means are formed of a sheet metal member shaped to deflect said combustion air entering into said intake air means.

Claim 21

An installation according to claim 17, wherein said sheet metal member is provided with a bend along a central direction, thereby forming a V-shape member with longitudinally extending sides.

Claim 22

An installation according to claim 18, wherein said bend has an apex facing said inlet opening.

Claim 23

An installation according to claim 19, wherein said V-shape member is closed at each open end face by a web, whereby said webs at each open end face prevents turbulence of said combustion air between said preheating means and said protective means.

Claim 24

An installation according to claim 20, wherein the web at one open end face is provided with means for spacing said web from said inlet air means.

Claim 25

An installation according to claim 21, wherein a plurality of openings are provided along said bend of said sheet metal member, said openings formed by pressed-out portions of said sheet metal member, and wherein two slot means, each disposed adjacent one another and extending parallel to said bend, are formed in said sheet metal member and disposed on opposite sides of said bend, whereby formation of soot is prevented on said preheating means by said plurality of openings and said slots.

Claim 26

An installation according to claim 22, wherein a further slot is arranged at said bend adjacent to said plurality of openings.

Claim 27

An installation according to claim 20, wherein said protective means is arranged in said intake air means such that an air gap is formed between said intake air means and each web of said protective means.

Claim 28

An installation according to claim 11, wherein said cylinder row banks are disposed in a V-arrangement.