Cylinder head

Patent metadata

Field	Value
Publication number	US-10260450-B2
Application number	US-201615050863-A
Country	US
Kind code	B2
Filing date	Feb 23, 2016
Priority date	Feb 27, 2015
Publication date	Apr 16, 2019
Grant date	Apr 16, 2019

Abstract

A cylinder head comprising at least one pre-chamber, at least one spark plug projecting into the pre-chamber, and at least one pre-chamber gas valve opening into the pre-chamber, wherein the spark plug and the pre-chamber gas valve are arranged in a common cavity of the cylinder head, wherein the spark plug and the pre-chamber gas valve are arranged in bores which mutually pass through each other.

First claim

The invention claimed is:

1. A cylinder head comprising:
at least one pre-chamber;
at least one spark plug projecting into the at least one pre-chamber; and
at least one pre-chamber gas valve opening into the at least one pre-chamber;
wherein the at least one spark plug and the at least one pre-chamber gas valve are each arranged in a common cavity of the cylinder head, and wherein the at least one pre-chamber gas valve is arranged in a longitudinally extending valve bore defined by a first circumference and the at least one spark plug is arranged in a longitudinally extending plug bore defined by a second circumference parallel with respect to the longitudinally extending valve bore, with the valve bore first circumference and the plug bore second circumference mutually intersecting and overlapping each other.

2. The cylinder head of claim 1 , wherein the at least one spark plug is arranged in a spark plug sleeve, and the common cavity is arranged in the spark plug sleeve.

3. The cylinder head of claim 1 , wherein sealing of the at least one pre-chamber gas valve relative to the cylinder head or the spark plug sleeve is effected over a periphery of the at least one pre-chamber gas valve.

4. The cylinder head of claim 3 , wherein sealing of the at least one pre-chamber gas valve is through use of at least one O-ring.

5. The cylinder head of claim 4 , wherein the at least one O-ring is arranged in an opening formed by projections at an outside wall of the at least one pre-chamber gas valve.

6. An internal combustion engine having the cylinder head of claim 1 .

7. The cylinder head of claim 2 , wherein sealing of the at least one pre-chamber gas valve relative to the cylinder head or the spark plug sleeve is effected over a periphery of the at least one pre-chamber gas valve.

8. An internal combustion engine having the cylinder head of claim 2 .

9. An internal combustion engine having the cylinder head of claim 3 .

10. An internal combustion engine having the cylinder head of claim 4 .

11. An internal combustion engine having the cylinder head of claim 5 .

12. The cylinder head of claim 1 , wherein a sharp transition exists between the valve bore and the plug bore.

13. The cylinder head of claim 1 , wherein the valve bore blends fluidly in a smooth radius with the plug bore.

Assignees

• Ge Jenbacher Gmbh & Co Og

Inventors

• Jacob Raphael

Classifications

• F02B19/12 Primary

  with positive ignition (engines with non-timed positive ignition, and with incandescent chambers F02B9/08) · CPC title

• F02M21/0275

  for in-cylinder direct injection, e.g. injector combined with spark plug · CPC title

• F02P15/00

  Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 {and combined with layout of ignition circuits (not combined F02B, F02C, F02G, F02K)} · CPC title

• F02M21/0242

  Shut-off valves; Check valves; Safety valves; Pressure relief valves · CPC title

• Y02T10/125

  Cross-Sectional Technologies · mapped topic