US3667437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple plunger fuel injection pump
Assignee: Deutz Allis Corp
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Filing: 1970-08-19
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Granted: 1972-06-06
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Expires: 1990-08-19
Abstract
Abstract Multiple plunger fuel injection pump having built in fuel injection timing and quantity control.
Inventors
- 👤 Alexander Dreisin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:10
CPC Classifications
F; F02; F02M; F02M59/00; F02M59/44; F02D; F02D1/00; F02D1/02; F02D1/08; F02D1/10; F02M59/20; F02M59/36; F02M59/361
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
235 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 the bores and defining a fuel injection pumping chamber and a fuel supply chamber in each of said bores, 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, means sequentially reciprocating each of said plungers for discharge of fuel from said fuel injection pumping chamber through said delivery valve, a control sleeve mounted for reciprocal and rotational movement about each of said plungers and defining port means with said plunger for controlling the closing and opening of said passage means in said plunger between the supply chamber and the fuel injection pumping chamber, lever means connected to said plunger for rotating said plunger in said housing means to calibrate one of said plungers relative to remaining plungers, a speed responsive device adapted for connection to an engine including a control member moving in response to engine speed and load, means connecting said control member to each of said control sleeves for transmitting rotational and axial movement of said sleeves thereby controlling the quantity and timing of fuel injection delivered from said injection pumping chambers through said delivery valves.
Claim 2
Dependent Claim
235 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 the bores and defining a fuel injection pumping chamber and a fuel supply chamber in each of said bores, 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, means sequentially reciprocating each of said plungers for discharge of fuel from said fuel injection pumping chamber through said delivery valve, a control sleeve mounted for reciprocal and rotational movement about each of said plungers and defining port means with said plunger for controlling the closing and opening of said passage means in said plunger between the supply chamber and the fuel injection pumping chamber, lever means connected to said plunger for rotating said plunger in said housing means to calibrate one of said plungers relative to remaining plungers, a speed responsive device adapted for connection to an engine including a control member moving in response to engine speed and load, means connecting said control member to each of said control sleeves for transmitting rotational and axial movement of said sleeves thereby controlling the quantity and timing of fuel injection delivered from said injection pumping chambers through said delivery valves.
Claim 3
Dependent Claim
82 words
A multiple plunger fuel injection pump for an internal combustion engine as set forth in claim 1 wherein said means sequentially reciprocating said plungers comprises a cam, a cam follower connected to each of said plungers to operate said plungers in response to operation of said cam, said lever means defines a shim removably positioned between said plunger and said follower, a window for selectively positioning said shim of predetermined thickness between said plunger and said follower when said window is open.
Claim 4
Dependent Claim
79 words
A multiple plunger fuel injection pump for an internal combustion engine as set forth in claim 1 wherein said means sequentially reciprocating each of said plungers includes, a cam, a cam follower operated by said cam, said lever means defining calibration shim removably positioned between said plunger and said cam follower to thereby provide a means of selectively controlling the high and low position of each of said plungers in response to rise and fall of said cam follower.
Claim 5
Dependent Claim
90 words
A multiple plunger fuel injection pump for an internal combustion engine as set forth in claim 1 wherein said plunger and control sleeve define a spill slot means having a diagonal edge, said lever means connected to said plunger for rotating said plunger on its axis relative to said sleeve for selectively and alternatively increasing and decreasing quantity of fuel injection, an adjusting screw means mounted in said housing connected to said lever means to thereby adjustably rotate said plunger relative to said control sleeve to vary fuel quantity injection.
Claim 6
Dependent Claim
111 words
A multiple plunger fuel injection pump for an internal combustion engine as set forth in claim 1 wherein said speed responsIve device includes said member rotatably and axially movable relative to said housing means, a timing mechanism including a control rod in said means connecting said control member with each of said control sleeves providing axial movement of said control sleeves for timing control, means for transmitting axial movement from said control member to said control rod to rotatably move said control sleeves for fuel quantity control, said lever means connected to said plunger providing timing calibration by its selective thickness and quantity calibration through plunger rotation by said lever means.
Claim 7
Dependent Claim
125 words
A multiple plunger fuel injection pump for an internal combustion engine as set forth in claim 1 wherein each of said plungers and control sleeves define a diagonal spill slot and port means whereby rotational movement of said control sleeve varies fuel injection quantity, said means reciprocating said plungers including a cam and a cam follower, said lever means defining a shim removably positioned between said plunger and said cam follower to control the extreme reciprocal positions of said plungers in response to rise and fall of said cam follower, said lever means operating to selectively rotate said plunger relative to said control sleeve to thereby increase or decrease quantity of fuel injection of the adjusted plunger with relation to remaining multiplungers at said pump.
Claim 8
Dependent Claim
82 words
A multiple plunger fuel injection pump for an internal combustion engine as set forth in claim 1 wherein each of said plungers define a spill port in said passage means, each of said control sleeves define a diagonal slot on their internal periphery for spilling high pressure fluid from said fuel injection pumping chamber through said spill port for termination of fuel injection, said means reciprocating said plunger including means selectively receiving said lever means of desired thickness for calibration of timing.
Claim 9
Dependent Claim
51 words
A multiple fuel injection pump for an internal combustion engine as set forth in claim 1 wherein the end of said plunger includes slot means for receiving said lever means to thereby selectively control the plunger position axially and angularly relative to its mating control sleeve for calibration of said plunger.
Claim 10
Dependent Claim
63 words
A multiple plunger fuel injection pump for an internal combustion engine as set forth in claim 7 including means defining a window for removably positioning said lever means for rotating said plunger in said housing means, an adjusting screw pivoting said lever means to calibrate said plungers relative to the remaining plungers, a cover removably positioned over said adjusting screw and said window.
Claim 11
Dependent Claim
38 words
A multiple plunger fuel injection pump for an internal combustion engine as set forth in claim 1 including an adjusting screw for pivoting said lever means and rotating said plunger, a cover removably positioned over said adjusting screw.
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |