Patent US3714935A successfully refreshed from Google Patents.
US3714935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple plunger fuel injection pump
Assignee: Deutz Allis Corp
•
Filing: 1971-09-15
•
Granted: 1973-02-06
•
Expires: 1991-09-15
Abstract
Abstract A multiple plunger fuel injection pump having compact arrangement of the fuel supply pump, a high speed governor, an automatic fuel timing, fuel quantity, and programing of fuel delivery.
Inventors
- 👤 A Dreisin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:00
CPC Classifications
F; F02; F02D; F02D1/00; F02D2700/00; F02D2700/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
346 words
A multiple plunger fuel injection pump for an internal combustion engine comprising, a pump housing means defining a plurality of bores, a plunger received in each of said bores and defining a fuel injection pumping chamber and a fuel supply chamber for each of said bores, said pump housing means defining a fuel supply cavity in communication with said fuel supply chambers, a delivery valve in communication with each of said fuel injection pumping chambers, each of said plungers defining passage means selectively communicating between said injection pumping chamber and said supply chamber for supplying fuel to said injection pumping chamber, a camshaft in said fuel supply cavity sequentially reciprocating each of said plungers for discharge of fuel from said injection pumping chambers through said delivery valves, a control sleeve mounted for reciprocal and rotational movement about each of said plungers and defining port means with said plungers for controlling the closing and opening of said passage means in each of said plungers between the supply chamber and the fuel injection chamber, a governor having a speed responsive control member mounted in said fuel supply cavity of said housing and lying adjacent said camshaft, a fuel supply pump including a drive gear mounted on said camshaft and a driven gear connected and driving said governor, conduit means adapted for connection to a fuel reservoir for supplying fuel to said fuel supply pump, conduit means connecting the high pressure side of said supply pump to the fuel supply cavity within said housing means, a control rod having means connected to each of said control sleeves for reciprocating and rotating said control sleeves in response to rotation and reciprocal movement of said control rod, a control linkage connected between said control member on said governor and said control rod to thereby transmit movement from said control member to said control rod, a throttle linkage connected to said control linkage to thereby provide means for controlling the timing and quantity and programing of fuel injection of said fuel injection pump in response to speed and load of said engine.
Claim 2
Dependent Claim
346 words
A multiple plunger fuel injection pump for an internal combustion engine comprising, a pump housing means defining a plurality of bores, a plunger received in each of said bores and defining a fuel injection pumping chamber and a fuel supply chamber for each of said bores, said pump housing means defining a fuel supply cavity in communication with said fuel supply chambers, a delivery valve in communication with each of said fuel injection pumping chambers, each of said plungers defining passage means selectively communicating between said injection pumping chamber and said supply chamber for supplying fuel to said injection pumping chamber, a camshaft in said fuel supply cavity sequentially reciprocating each of said plungers for discharge of fuel from said injection pumping chambers through said delivery valves, a control sleeve mounted for reciprocal and rotational movement about each of said plungers and defining port means with said plungers for controlling the closing and opening of said passage means in each of said plungers between the supply chamber and the fuel injection chamber, a governor having a speed responsive control member mounted in said fuel supply cavity of said housing and lying adjacent said camshaft, a fuel supply pump including a drive gear mounted on said camshaft and a driven gear connected and driving said governor, conduit means adapted for connection to a fuel reservoir for supplying fuel to said fuel supply pump, conduit means connecting the high pressure side of said supply pump to the fuel supply cavity within said housing means, a control rod having means connected to each of said control sleeves for reciprocating and rotating said control sleeves in response to rotation and reciprocal movement of said control rod, a control linkage connected between said control member on said governor and said control rod to thereby transmit movement from said control member to said control rod, a throttle linkage connected to said control linkage to thereby provide means for controlling the timing and quantity and programing of fuel injection of said fuel injection pump in response to speed and load of said engine.
Claim 3
Dependent Claim
346 words
A multiple plunger fuel injection pump for an internal combustion engine comprising, a pump housing means defining a plurality of bores, a plunger received in each of said bores and defining a fuel injection pumping chamber and a fuel supply chamber for each of said bores, said pump housing means defining a fuel supply cavity in communication with said fuel supply chambers, a delivery valve in communication with each of said fuel injection pumping chambers, each of said plungers defining passage means selectively communicating between said injection pumping chamber and said supply chamber for supplying fuel to said injection pumping chamber, a camshaft in said fuel supply cavity sequentially reciprocating each of said plungers for discharge of fuel from said injection pumping chambers through said delivery valves, a control sleeve mounted for reciprocal and rotational movement about each of said plungers and defining port means with said plungers for controlling the closing and opening of said passage means in each of said plungers between the supply chamber and the fuel injection chamber, a governor having a speed responsive control member mounted in said fuel supply cavity of said housing and lying adjacent said camshaft, a fuel supply pump including a drive gear mounted on said camshaft and a driven gear connected and driving said governor, conduit means adapted for connection to a fuel reservoir for supplying fuel to said fuel supply pump, conduit means connecting the high pressure side of said supply pump to the fuel supply cavity within said housing means, a control rod having means connected to each of said control sleeves for reciprocating and rotating said control sleeves in response to rotation and reciprocal movement of said control rod, a control linkage connected between said control member on said governor and said control rod to thereby transmit movement from said control member to said control rod, a throttle linkage connected to said control linkage to thereby provide means for controlling the timing and quantity and programing of fuel injection of said fuel injection pump in response to speed and load of said engine.
Claim 4
Dependent Claim
346 words
A multiple plunger fuel injection pump for an internal combustion engine comprising, a pump housing means defining a plurality of bores, a plunger received in each of said bores and defining a fuel injection pumping chamber and a fuel supply chamber for each of said bores, said pump housing means defining a fuel supply cavity in communication with said fuel supply chambers, a delivery valve in communication with each of said fuel injection pumping chambers, each of said plungers defining passage means selectively communicating between said injection pumping chamber and said supply chamber for supplying fuel to said injection pumping chamber, a camshaft in said fuel supply cavity sequentially reciprocating each of said plungers for discharge of fuel from said injection pumping chambers through said delivery valves, a control sleeve mounted for reciprocal and rotational movement about each of said plungers and defining port means with said plungers for controlling the closing and opening of said passage means in each of said plungers between the supply chamber and the fuel injection chamber, a governor having a speed responsive control member mounted in said fuel supply cavity of said housing and lying adjacent said camshaft, a fuel supply pump including a drive gear mounted on said camshaft and a driven gear connected and driving said governor, conduit means adapted for connection to a fuel reservoir for supplying fuel to said fuel supply pump, conduit means connecting the high pressure side of said supply pump to the fuel supply cavity within said housing means, a control rod having means connected to each of said control sleeves for reciprocating and rotating said control sleeves in response to rotation and reciprocal movement of said control rod, a control linkage connected between said control member on said governor and said control rod to thereby transmit movement from said control member to said control rod, a throttle linkage connected to said control linkage to thereby provide means for controlling the timing and quantity and programing of fuel injection of said fuel injection pump in response to speed and load of said engine.
Claim 5
Dependent Claim
79 words
A multiple plunger fuel injection pump for an internal combustion engine as set forth in claim 1 wherein said pump housing means includes an end plate defining pockets therein, said drive and driven gears of said fuel supply pump received in said pockets, a cover plate covering the pockets receiving said drive and driven gears to thereby provide a fuel supply pump within the end of said housing means for supplying fuel to said multiple plunger fuel injection pump.
Claim 6
Dependent Claim
105 words
A multiple plunger fuel injection pump for an internal combustion engine as set forth in claim 1 wherein said housing means includes end plates defining pockets on their inner sides for receiving journaled portions of said camshaft and supporting the ends of said camshaft, said camshaft defines a central opening extending through said camshaft, passage means connected between the low pressure side of said fuel supply pump and to a point adjacent to the outer side of the journaled portions of said camshaft to thereby draw fuel for lubrication and cooling of the journaled portions of said drive shaft when said pump is in operation.
Claim 7
Dependent Claim
65 words
A multiple plunger fuel injection pump for an internal combustion engine as set forth in claim 1 wherein said fuel supply pump includes said drive gear and driven gear having a 4:1 ratio and said governor rotates at four times the speed of the camshaft with said camshaft rotating at one-half the engine speed thereby providing a compact high speed governor for controlling fuel injection.
Claim 8
Dependent Claim
66 words
A multiple plunger fuel injEction pump for an internal combustion engine as set forth in claim 1 wherein said housing means defining said fuel supply cavity includes means supporting said camshaft for rotation in said cavity, means for supporting said governor adjacent to said camshaft in said fuel supply cavity to thereby provide a compact arrangement of said governor in said multiple plunger fuel injection pump.
Claim 9
Dependent Claim
50 words
A multiple plunger fuel injection pump for an internal combustion engine as set forth in claim 1 including means rotatably supporting said camshaft and defining an axis of rotation, means rotatably supporting said governor and defining an axis of rotation in parallel with the axis of rotation of said camshaft.
Claim 10
Dependent Claim
52 words
A multiple plunger fuel injection pump for an internal combustion engine as set forth in claim 1 wherein said governor defines a centrifugal type governor, spring means connected between the driven gear of said fuel supply pump and said governor driving said governor to thereby eliminate torsional vibrations in said governor drive.
Claim 11
Dependent Claim
55 words
A multiple plunger fuel injection pump for an internal combustion engine as set forth in claim 1 including means rotatably supporting said camshaft in said pump housing means, means rotatably supporting said governor for rotation about an axis immediately below said camshaft to thereby provide a compact arrangement of said multiple plunger fuel injection pump.
Claim 12
Dependent Claim
66 words
A multiple plunger fuel injection pump for an internal combustion engine as set forth in claim 1 wherein said control linkage includes a flat control linkage extending downwardly from said control rod adjacent said camshaft and pivotally supported in the side portion of said housing means for connection to the speed responsive member of said governor to thereby limit the space requirements of said control linkage.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |