Fuel injection pump for internal-combustion engines

Claim 2

In a fuel injection pump associated with an internalcombustion engine, the improvement comprising, A. a piston delivering fuel, during its pressure strokes, to said engine, B. means for controlling the fuel quantity delivered to said engine by said piston during its pressure strokes, said lastnamed means including 1. a variable throttle opening determining the flow rate of fuel passing therethrough for setting said fuel quantity, 2. a movable control plunger adjacent said throttle opening for varying the flow passage section thereof, 3. an arbitrarily movable part connected with said control plunger for setting the flow passage section of said throttle opening to a desired value and 4. a heat expandable member responsive to the temperature change of said fuel, said heat expandable member being in engagement with said control plunger to cause displacement thereof relative to said arbitrarily movable part for varying said flow passage section upon variations of said temperature.

Claim 3

a movable control plunger adjacent said throttle opening for varying the flow passage section thereof,

Claim 4

a movable control plunger adjacent said throttle opening for varying the flow passage section thereof,

Claim 5

An improvement as defined in claim 1, wherein said heat expandable member is in engagement with said arbitrarily movable part to constitute a motion transmitting means between said arbitrarily movable part and said movable control plunger.

Claim 6

a heat expandable member responsive to the temperature changes of said regulating liquid and in engagement with said control plunger to cause displacement thereof upon variations of said temperature.

Claim 7

a heat expandable member responsive to the temperature changes of said regulating liquid and in engagement with said control plunger to cause displacement thereof upon variations of said temperature.

Claim 8

An improvement as defined in claim 2, wherein said heat expandable member is disposed axially between said control plunger and said arbitrarily settable part; the changes in dimension of said heat expandable member effect an axial displacement of said control plunger with respect to said arbitrarily settable part.

Claim 9

an arbitrarily movable part connected with said control plunger for setting the flow passage section of said throttle opening to a desired value and

Claim 10

an arbitrarily movable part connected with said control plunger for setting the flow passage section of said throttle opening to a desired value and

Claim 11

a heat expandable member responsive to the temperature change of said fuel, said heat expandable member being in engagement with said control plunger to cause displacement thereof relative to said arbitrarily movable part for varying said flow passage section upon variations of said temperature.

Claim 12

a heat expandable member responsive to the temperature change of said fuel, said heat expandable member being in engagement with said control plunger to cause displacement thereof relative to said arbitrarily movable part for varying said flow passage section upon variations of said temperature.

Claim 13

An improvement as defined in claim 2, wherein said control plunger is integral with a threaded portion or screw to be axially displaced by rotation and with a segment head; said arbitrarily settable part is formed as a segment member arranged adjacent and rotatable with respect to said segment head, said heat expandable member has a segment configuration and is inserted between said segment head and said segment member, the changes in dimension of said heat expandable member effect an axial displacement of said control plunger by rotation with respect to said arbitrarily settable part.

Claim 14

In a fuel injection pump associated with an internal-combustion engine, the combination comprising A. a main piston delivering fuel, during its pressure strokes, to said engine, B. a pump work chamber from which said fuel is displaced by said main piston, C. a bypass channel extending from said pump work chamber, D. a regulator shuttle executing alternating forward strokes and return strokes, said regulator shuttle opening said bypass channel during said forward strokes to interrupt delivery of fuel from said pump work chamber to said engine during one part of each pressure stroke of said main piston, E. a regulating liquid, F. an auxiliary piston operating synchronously with said main piston and driving said regulating liquid with an r.p.m.-dependent pressure against said regulator shuttle to cause the forward strokes thereof, G. return means exerting a force on said regulator shuttle against the pressure of said regulating liquid, H. a return channel, I. an arbitrarily variable throttle in said return channel; said regulator shuttle being braked during its return strokes, by said regulating liquid forced by said regulator shuttle through said return channel and said arbitrarily variable throttle and J. arbitrarily displaceable means to vary the flow passage section of said throttle, said last named means including

Claim 15

In a fuel injection pump associated with an internal-combustion engine, the combination comprising A. a main piston delivering fuel, during its pressure strokes, to said engine, B. a pump work chamber from which said fuel is displaced by said main piston, C. a bypass channel extending from said pump work chamber, D. a regulator shuttle executing alternating forward strokes and return strokes, said regulator shuttle opening said bypass channel during said forward strokes to interrupt delivery of fuel from said pump work chamber to said engine during one part of each pressure stroke of said main piston, E. a regulating liquid, F. an auxiliary piston operating synchronously with said main piston and driving said regulating liquid with an r.p.m.-dependent pressure against said regulator shuttle to cause the forward strokes thereof, G. return means exerting a force on said regulator shuttle against the pressure of said regulating liquid, H. a return channel, I. an arbitrarily variable throttle in said return channel; said regulator shuttle being braked during its return strokes, by said regulating liquid forced by said regulator shuttle through said return channel and said arbitrarily variable throttle and J. arbitrarily displaceable means to vary the flow passage section of said throttle, said last named means including