公开(公告)号：WO1985001318A1

公开(公告)日：1985-03-28

申请号：PCT/US1983001735

申请日：1983-11-07

Applicant: CATERPILLAR TRACTOR CO.

Inventor： CATERPILLAR TRACTOR CO. ,  BAILEY, John, M. ,  LINDENFELSER, Dale, L.

IPC: F02F03/26

CPC classification number: F02B19/1004 ,  F02B3/06 ,  F02F3/24 ,  F02F3/285 ,  F05C2201/021 ,  Y02T10/125

Abstract: Heat plugs made of durable, heat resistant material are useful for protecting aluminium pistons from the jet flame of burning fuel emitted from the precombustion chamber of some compression ignition engines. However, when slower burning fuel such as vegetable oil is burned, unburned fuel is sometimes deflected by the heat plug against the adjacent cylinder bore where it dilutes the lubricating oil and causes high wear to that portion of the bore and to the piston rings. The subject heat plug (26) is provided with a barrier (37) which prevents unburned fuel from being deflected against a portion of the cylinder bore (12) nearest the heat plug. Thus, that unburned fuel remains in the burning gaseous mixture in the combustion chamber and is burned during the combustion process within the combustion chamber.

公开(公告)号：WO1985004447A1

公开(公告)日：1985-10-10

申请号：PCT/US1984000708

申请日：1984-05-10

Applicant: CATERPILLAR TRACTOR CO.

Inventor： CATERPILLAR TRACTOR CO. ,  BAILEY, John, M. ,  GIBSON, Dennis, H. ,  HACKETT, David, E. ,  STOCKNER, Alan, R. ,  WALDMAN, Donald, J.

IPC: F02M41/06

CPC classification number: F02M59/04 ,  F02B2075/025 ,  F02B2075/027 ,  F02B2275/14 ,  F02M41/06 ,  Y02T10/123

Abstract: Previously disclosed distributor fuel injection pumps for internal combustion engines offer the advantages of reduced size, weight, and cost of a fuel injection system. However, these pumps have not been able to provide relatively high fuel injection pressures which could improve fuel combustion for better fuel economy and lower noxious emissions. In contrast, the subject distributor fuel injection pump (14) generates relatively high fuel injection pressures in a relatively compact arrangement. A semi-spherical nutator member (74) freely rotatably mounted on an oblique journal (66) of a drive shaft (38) imparts high speed harmonic motion to at least one reciprocating pump plunger (310, 314) for pressurizing the fuel. A relatively large semi-spherical bearing interface (82, 86) between the nutator member and a pump housing (34) accomodates very high pumping reaction loads. A distributor rotor (348) for sequentially delivering the pressurized fuel to more than one engine combustion cylinder is rotatively driven by a planetary gear reduction mechanism (392, 396, 424, 428, 432, 436, 440, 444, 448) coupled to the drive shaft. Very little force is required to adjust either the timing or quantity of fuel injection which are adjustable by angular movement of at either a normally stationary planetary ring gear (396) or a fuel metering collar (146), respectively.