Claims
- 1. In a fuel injection pump for internal combustion engines which includes a housing, a primary drive shaft disposed to rotate in said housing, cylinder means disposed within said housing, a reciprocating and rotating pump piston moving within said cylinder means and powered by said primary drive shaft, a centrifugal force governor for regulating the injected fuel quantity, and a fuel supply pump for supplying fuel to said cylinder means for delivery by said pump piston, the improvement comprising:
- a secondary shaft, disposed to rotate within said housing and driven mediately by said primary drive shaft for simultaneously powering the motion of said centrifugal force governor and said fuel supply pump; and cover means, wherein:
- i. said housing has an interior recess which together with said cover means define an enclosure within which said fuel supply pump is mounted, said fuel supply pump including a central movable member;
- ii. the central movable member of said fuel supply pump is coaxially disposed on one end of said secondary drive shaft;
- iii. said secondary shaft comprises an upper portion and a lower portion with said lower portion having a larger diameter than said upper portion;
- iv. said primary shaft includes drive imparting means; and
- v. said lower portion has a drive receiving means mounted thereto which engages the drive imparting means of said primary shaft for driving said secondary shaft, and a drive imparting means mounted thereto which engages and imparts a drive to said central movable member of said fuel supply pump.
- 2. An improved fuel injection pump as defined in claim 1, wherein said housing defines a suction chamber and a bore which opens at one end into said interior recess and at its other end into said suction chamber, and wherein the lower portion of said secondary shaft extends through said bore defining thereby two ends one of which extends into said suction chamber and has said drive receiving means mounted thereto and the other of which extends into said interior recess and has said drive imparting means mounted thereto.
- 3. An improved fuel injection pump as defined in claim 2, wherein said housing defines a suction channel which leads to said interior recess and a further bore which opens at one end into said interior recess and at its other end into said suction chamber, said suction channel serving for the passage of fuel to said fuel supply pump and said bore serving for the passage of fuel from said fuel supply pump to said suction chamber.
- 4. An improved fuel injection pump as defined in claim 3, wherein the improvement further comprises an overflow line and a pressure control valve connected to said further bore.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2361958 |
Dec 1973 |
DT |
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Parent Case Info
This is a continuation, of application Ser. No. 531,293, filed Dec. 10, 1974 now abandoned.
US Referenced Citations (3)
Continuations (1)
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Number |
Date |
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531293 |
Dec 1974 |
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