APPARATUS FOR A CHARGING SYSTEM OF AN INTERNAL COMBUSTION ENGINE

• US 20160326998A1
• Filed: 05/04/2016
• Published: 11/10/2016
• Est. Priority Date: 05/06/2015
• Status: Abandoned Application

• Current Assignee: BorgWarner Incorporated, MANN + Hummel GmbH (Hummel Familien-Beteiligungsgesellschaft mbH + Co. KG)
• Original Assignee: BorgWarner Incorporated, MANN + Hummel GmbH (Hummel Familien-Beteiligungsgesellschaft mbH + Co. KG)
• Inventors: JACOB, Stefan, SCHICK, Hedwig, PIETROWSKI, Herbert, NEUSCHWANDER, Helmut, METZ, Dietmar
• Application Number:
  US15/145,860
• Publication Number:
  US 20160326998A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F02B 29/0406 Layout of the intake air cooling or coolant circuit
• CPC Class Codes: F02B 33/40 of non-positive-displacement type
• CPC Class Codes: F02B 37/00 Engines characterised by provision of pumps driven at least for part of the time by exhaust
• CPC Class Codes: F02B 39/10 electric
• CPC Class Codes: F02M 25/06 adding lubricant vapours
• CPC Class Codes: F02M 26/08 for engines having two or more intake charge compressors or exhaust gas turbines, e.g. a turbocharger combined with an additional compressor
• CPC Class Codes: F02M 35/10157 Supercharged engines
• CPC Class Codes: F02M 35/10222 Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
• CPC Class Codes: F02M 35/10255 Arrangements of valves; Multi-way valves F02M35/10032 takes precedence; valves in the plenum chamber F02M35/10065; check valves F02M35/10275
• CPC Class Codes: F02M 35/10275 Means to avoid a change in direction of incoming fluid, e.g. all intake ducts diverging from plenum chamber at acute angles; Check valves; Flame arrestors for backfire prevention
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies

Abstract

The invention relates to apparatus (1) for a charging system of an internal combustion engine (31), comprising a housing (2) in which a secondary line (6) of an additional compressor (33) opens at an opening (54) into an air duct (5) of the internal combustion engine (31), a closing device (8) in the housing (2) for closing the air duct (5) upstream of the outlet (54), wherein the closing device (8) is arranged pivotably about a geometric axis of rotation (14), and at least one spring (21) arranged in the housing (2), wherein the spring (21) biases the closing device (8) in the closing direction, and wherein the closing device (8) is moved exclusively by the spring force of the spring (21) and the pressure condition upstream (55) and downstream (56) of the closing device (8).

Claims

1. An apparatus (1) for a charging system of an internal combustion engine (31), comprising

a housing (2) in which a secondary line (6) of an additional compressor (33) opens at an opening (54) into an air duct (5) of the internal combustion engine (31),

a closing device (8) in the housing (2) for closing the air duct (5) upstream of the outlet (54), wherein the closing device (8) is arranged pivotably about a geometric axis of rotation (14), and

at least one spring (21) arranged in the housing (2), wherein the spring (21) biases the closing device (8) in the closing direction, and wherein the closing device (8) is moved exclusively by the spring force of the spring (21) and the pressure conditions upstream (55) and downstream (56) of the closing device (8).

2. The apparatus (1) according to claim 1, characterized in that the spring (21) is formed by a torsion spring surrounding the axis of rotation (14) in a spiral shape.

3. The apparatus (1) according to claim 1, characterized by a shaft (13) arranged along the axis of rotation (14) rotating with the closing device (8).

4. The apparatus (1) according to claim 3, characterized in that, at least one axial stop (57) of the shaft (13),

a sphere (17) is arranged, or

a pin (58) is designed on the housing (2) and/or on the shaft (13), and/or

a point (59) is designed on the housing (2) and/or on the shaft (13) for a low-friction mounting.

5. The apparatus (1) according to claim 3, characterized by a first bearing component (15) for rotatable support of the shaft (13), wherein an elastic element, preferably an O-ring (16) surrounding the axis of rotation (14) is arranged between the first bearing component (15) and the housing (2).

6. The apparatus (1) according to claim 3, characterized by a second bearing component (19) for rotatable support of the shaft (13), wherein the second bearing component (19) is pushed into the housing (2) rotatably fixed.

7. The apparatus (1) according to claim 3, characterized in that the closing device (8) has a plate (9) and a fastening region (11), wherein the fastening region (11) is connected to the shaft (13), and wherein the fastening region (11) is bent at an angle (α

) with respect to the plate (9).

8. The apparatus (1) according to claim 1, characterized in that a seal (10) is arranged on the closing device (8) for sealing the sealing seat of the closing device (8).

9. The apparatus (1) according to claim 1, comprising the additional compressor (33), wherein the additional compressor (33) comprises an electric motor (47) for driving an additional compressor wheel (46).

10. The apparatus (1) according to claim 9, comprising a main compressor (34), preferably in an exhaust gas turbocharger (35), the main compressor wheel (48) thereof compresses the air in the air duct (5) upstream or downstream of the closing device (8).

11. The apparatus (1) according to claim 1, characterized in that

at least one acoustic damper (45) is arranged in the secondary line (6) upstream of the additional compressor (33), and/or

at least one acoustic damper (45) is arranged in the secondary line (6) downstream of the additional compressor (33), and/or

at least one acoustic damper (45) is arranged in the air duct (5) upstream of the main compressor (34), and/or

at least one acoustic damper (45) is arranged in the air duct (5) downstream of the main compressor (34).